1. math

    Area of a Triangle. The area in square meters of a triangle is given by A(x)=x^2+5x+6 a)Find A(5) b)If the length of the triangle is x+3 then what is the base of the triangle?
  2. Math

    The triangle below has a height of 12 feet and a base of 9 feet. What is the area of the triangle? A.108 B.54 C.21 D.30 B? If the area of a square is 81 square meters which formula would you use to calculate the perimeter of the square? A.p=lxw B.p=s+s
  3. pre-algebra

    When designing a pattern, Erica rotated a triangle 90 degrees about the midpoint of one side to create a second triangle. If the area of the original triangle is 48 square inches, what is the area of the second triangle?
  4. math

    the area of an equilateral triangle is given by the expression s^2 x square root of 3/4, where s is the side length of the triangle. what is the area of the triangle? round to the nearest tenth the triangle is 5 cm on all three sides.
  5. MATH

    ABCD is a rectangle and line DX and DY and XY are drawn where X is on AB and Y is on BC.the area of the triangle BXY is 4 ,area of triangle AXD is 5 and area of triangle CYD is 3.determine the area of the triangle DXY.
  6. MATH

    ABCD is a rectangle and line DX and DY and XY are drawn where X is on AB and Y is on BC.the area of the triangle BXY is 4 ,area of triangle AXD is 5 and area of triangle CYD is 3.determine the area of the triangle DXY.
  7. geometry

    Open that link please please help me with my assignments 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4, and 5 respectively. find the area of triangle aef 2. equialateral triangle abc has an area of square root of 3 and
  8. Math

    in triangle DEF,
  9. 11th grade math

    in triangle DEF,
  10. math

    M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle
  11. geometry

    Theres a circle with an equilateral triangle in the middle. The traingles edges all touch the circle. The radius of the circle is 8 meters. How do I find the area of the triangle? Sorry The triangles edges don't touch the circle, the points do. Did you
  12. algebra/math

    I have this figure of a square QRST with an equilateral triangle PQT sitting on top of the square. The figure looks like a little house... My question is if PQ equals 6 cm, then what is the area of the square? Do I need to find the area of the triangle to
  13. Geometry

    Diagonals of quadrilateral ABCD intersect at O.If area of triangle ACB is 5 sq.units,area of triangle BCD is 9 sq.units,area of triangle CDA is 10 sq.units and area of triangle DAB is 6 sq.units,Find area of triangle AOB. Im begging you! pls I badly need
  14. GEOMETRY URGENT PLEASE

    (imageshack)(.)us(/)photo (/) my-images (/)42(/)2vja. jpg(/) Open that link please , just delete the parentheses please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, triangle abe, triangle
  15. maths

    AD is the median of triangle ABC and G divides AD in the ratio 2:1 .Prove that area (triangle AGB )= area (triangle BGC )=area (triangle AGC )=1÷3area (triangle ABC )
  16. GEOMETRY

    Here are the figures. file:///C:/Users/ALIZAJOY/Pictures/Untitled.png Open that link please please help me with my assignments 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4, and 5 respectively. find the area of triangle
  17. geometry

    14. Question says that there is a triangle with a base of x units and height h units and two sides of length 10 units. Answer the following questions: • Draw a representation of this situation (the triangle). • Find a formula for h in terms of x. h =
  18. geometry PLEASE

    imageshack(.)(us)/photo/my-images/42/2vja.jpg/ Open that link please , just delete the parentheses please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4,
  19. math

    i have trouble finding the answer to this and how to srt. there is a square and i havbe to find the area. HOweever inside the square is a triangle. the base of the triangle is 3 and the leg is 7. no height is given. plz help. Is this a right triangle? Is
  20. math

    the area of a triangle is 90 square meters and the height is 12 meters. What is the base of the triangle?
  21. math

    B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The area of triangle is = ½bh. The area of the triangle is 3/2x^2 + 10x + 16cm^2 where x is a positive integer. The area of the triangle ABC can be written in the form 1/2 (x+a)(bx + c)
  22. Pre-Algebra

    A triangle is enlarged by a scale factor of 10/3. a) If the perimeter of the copy is 36 meters, find the perimeter of the original triangle using the proportion 10/3. b) If the area of the copied triangle is 48 meters squared, use a proportion to find the
  23. Algebra

    How do you find the area of a shaded area in a triangle and assume the area of the largest triangle is one unit? If the largest (outer) triangle has area =1, and it has a base length b and height h, then (1/2) b h = 1 bh = 2 Then use whatever information
  24. math

    The figure below is not drawn to scale. The ratio of the area of triangle ABC to the area of triangle DEC to the area of triangle FGH is 7 : 5 :3. If 20% of the area of triangle DEC is shaded, what percentage of the figure is unshaded? PLEASE SHOW ALL YOUR
  25. geometry

    (imageshack)123 (.)us(/)photo 123 (/) my-images 123 (/)42(/) 123 2vja. jpg(/)123 Open that link please , just delete the parentheses and spaces and 123's please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the
  26. (:

    help with Quadratic Equations and Functions: 5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The
  27. Algebra - PLEASE HELP!

    Can you PLEASE help me with this problem? I do not understand... The area of a triangle can be found by using the formula A=1/2bh. The area of the triangle can be represented by the expression -17.5x2^ - 138.5x - 27. The triangle's base length is greater
  28. Math

    The area of each trapezoid is 3 times the area of one triangle. The area of one triangle is six square units. What is the total area of the figure in square units?
  29. Math

    An isosceles triangle and a rectangle share a base. The area of the rectangle is 4 times the area of the triangle. The area of the triangle is 60 cm^2 and its height is 15 cm. Find the dimensions of the triangle.
  30. math

    determine the area of triangle abc when side ab= square root of x, side bc= square root of x, and side ca= the square root of the square root of x. So how do I solve it. How do I add the square root of x + the square root of x + the square root of the
  31. Math-Algebra 1

    I have 2 questions. one is a rectangle that has an area of 34 square meters, the width is (x+4)m and the length is (x+11)m. The other problem is a triangle that has an area of 119 square ft. The legs are (x+3) ft and (x+6) ft. It has a right angle opposite
  32. algebra

    sooo confusing... 6. (¼ + 7/8)(9/13) A81/13 B17/104 C81/104 D17/29 E17/13 F17/25 7. [6(2+1) -6(1+1)] / [6(4-2) - 22 ] A3/2 B3/4 C3/5 D3 E1/3 F2/3 8. -3(y – 5) - (-2y + 1) A-y +14 B5y - 4 C-5y + 14 D-13y E-5y -6 F-y – 4 For problems 9 – 15 let a = 2,
  33. math

    The triangle inscribed within square ABCD has, as its base, side AD, and has a height of 6 cm. If the area of the triangle is 21 cm2, what is the area of the shaded region?
  34. Maths

    The ratio of the corresponding sides of two similar triangles are 2:5.Calculate the area of the larger triangle if the area of the smaller triangle is 28 square.
  35. Calculus Please help!

    The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 3500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7000 centimeters
  36. Math

    The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 9000 centimeters
  37. CAL

    The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 11500 centimeters
  38. CAL

    The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 11500 centimeters
  39. math 209

    Area of a sail. The area in square meters for a triangle is given by A(x)=x^2 +5x +6. a.) Find A(5) b) if the height of the sail is x+3 meters, then what is the length of the base of the sail when area is x^2 +5x+6m^2?
  40. Math

    5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r2. 8)The triangle has an area of 14 in2. Determine the
  41. math

    A composite figure is formed by combining a square and a triangle. Its total area is 32.5 feet squared. The area of the triangle is 7.5 ft squared. What is the length of each side of the square? Explain. THANK YOU!!
  42. Math

    An equilateral triangle s divided into 4 congruent equilateral triangles. What method can be used to find the area of the larger equilaterl triangle give the area of one of the smaller triangles? F. Multiply the area of the larger equilateral triangle by 4
  43. math?

    5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in^2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The 3 sided triangle has an area of 14 in^2.
  44. MATH

    1. The sides of a square are increased by a scale factor of 6. The perimeter of the smaller square is 10 ft. What is the perimeter of the larger square? A.10 ft B. 40 ft C. 60 ft D. 120 ft 2. A right triangle has an area of 13 m^2. The dimensions of the
  45. Math

    The area A of a triangle is given by the formula A=1/2bh If the base of the triangle with height 12 inches is doubled, its area will be increased by 48 square inches. Find the base of the orignial triangle.
  46. Math

    The area A of a triangle is given by the formula A=1/2bh If the base of the triangle with height 12 inches is doubled, its area will be increased by 48 square inches. Find the base of the orignial triangle.
  47. math

    The figure below is not drawn to scale. The ratio of the triangle ABC to the area of triangle DEC to the area of the triangle FGH is 7:5:3. If 20% of the area of triangle DEC is shaded, what percentage of the figure is unshaded?
  48. math

    One leg of a right triangle is one less than twice the other. The area of the triangle is 18 square feet. What is the length of the 3rd side of the triangle? Solve by factoring. A= 1/2 (b)(h) 18= 1/2 (x)(2x-1)
  49. pre algebra

    the midpoints of each side of triangle NOT are connected to make a smaller triangle inside triangle NOT. If the area of triangle NOT is 16 in squared, what is the area of the smaller triangle?
  50. Trig

    An isosceles triangle has a height of 12.5 m (measured from the unequal side) and two equal angles that measure 55°. Determine the area of the triangle. Split in half the triangle is a right triangle, so it's three angles are 90%, 55% and 70%. I'm still
  51. Math : Geometry : Similar triangles

    two right triangles are similar. the of the larger triangle is 4 times as long as the base of the smaller triangle. the height of the longer triangle is 16cm. the area of the smaller triangle is 6cm^2. What is the area of the long triangle?
  52. math

    Triangle ADE is inside rectangle ABCD. Point E is half way between points B and C on the rectangle. Since AB is 8 cm and side AD is 7 cm. 1. what is the area of triangle ADE? 2. what is the ratio of the area of the triangle ABE to the area of triangle ADE?
  53. Geometry

    Can anybody help me with this word problem? A homeowner, who loves math, decides to make a garden/patio area in the following way. She decides to make the gardening area, where she will plant roses bushes in the shape of an equilateral triangle having a
  54. Math

    Triangle A has an area of 19,00cm squared and similar triangle B has an area of 118.75cm squared. Determine what scale factor makes triangle B an enlargement of triangle A
  55. Math

    Two vertices of a right triangle are (0,1) and (0,6). The area of the triangle is 10 square units. Which point could be the third vertex of the triangle?
  56. math

    The area of a triangle is 80 square meters and the base measures 20 meters. Find the number of meters in the measure of the altitude.
  57. math

    a) What is the area of the tri-angle determined by the lines y= − 1/ 2x + 5,y =6x and they-axis? (b) If b > 0 and m < 0, then the line y = mx +b cuts off a triangle from the first quadrant. Express the area of that tri-angle in terms ofm andb. (c) The
  58. Maths

    The area of a triangle , whose base and the corresponding altitude are 15 cm and 7 cm, is equal to area of a right triangle whose one of the sides containing the right angle is 10.5 cm, Find the other side of this triangle. Ans.= area=15×7=105 105-10.5=00
  59. Algebra

    Area of a triangle. Find the exact area of a triangle with a base of sqrt 30 meters and a height of sqrt of 6 meters. Thank-you
  60. geometry

    Each base of an isosceles triangle measures 42 degrees, 30'. The base is 14.6 meters long. a. Find the length of a leg of the triangle b. Find the altitude of the triangle c. What is the area of the triangle?
  61. MATH Please help!

    A right triangle has an area of 13^2. The dimensions of the triangle are increased by a scale factor of three. What is the area of the new triangle? a. 39^2 b. 169^2 c. 117^2 d. 142^2 i think the answer is A but i am not sure! any help is appreciated
  62. math

    The length of the base and the height of a triangle are numerically equal. Their sum is 16 less than the number of units in the area of the triangle. Find the area of the triangle.
  63. calculus

    The altitude of a triangle is increasing at a rate of 3.000 centimeters/minute while the area of the triangle is increasing at a rate of 2.500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 9.000
  64. college geometry

    Given: right triangle ABC with right angle at C, AC=22 and BC=6.Draw altitude CD where D is o hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB?
  65. math

    A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Can someone plz help i don't understand this question.
  66. geometry

    A piece of property is in the form of a right triangle with sides which are 300 meters and 1200 meters in length. What is the area of this triangle in hectares, correct to the nearest whole hectare?
  67. Math

    The diagram: it is a large triangle labelled ACD(AC a line horizontal, then AD and CD joining at the tip going down-so the triangle is "upside down" with the base up) with a line drawn that connects point E, which intersects segment CD at the middle(a
  68. math

    please help me solve this problem, thank you. The ratio of the area of a triangle to the area of a rectangle is 3:5. the difference in their areas is 54 square inches. what is the height of the triangle if its base is 2 times its height?
  69. Algebra 8th grade please help!!!!!!

    A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Please help!!!! a)39 m2 b)169 m2 c)117 m2 d)142 m2
  70. math Ms. Sue

    A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? 39 m2 169 m2 117 m2 142 m2 I think it is A...?
  71. Pre-Algebra

    A right triangle has an area of 21 m2. The dimensions of the triangle are increased by a scale factor of 4. What is the area of the new triangle? A. 42 m2 B. 84 m2 C. 168 m2 D. 336 m2 How would I solve this?
  72. Maths

    In a triangle ABC, D is the midpoint of BC and E is the midpoint of AD. if area of triangle ABC is 144 meter square then find the area of triangle DCE
  73. mats

    in a triangle ABC, D is the midpoint of BC and E is the midpoint of AD. IF area of triangle ABC is 144 centimetre square then find the area of triangle DCE
  74. Math

    Square ABCD and triangle APB lie on same base AB. If area of square is 16 cm square find ar (triangle ABP) where P is a point on side CD.
  75. Math...Geometry

    Hello, Can someone please tell me if I worked this out correct and ended with the right answer? Thank You... I need to find the area and Height of this right triangle ( only knowing the lengths of its sides)side 6,5,11... Is this correct? sides 6, 5, 11 --
  76. math

    suppose a parallelogram has an area of 84 square units. Describe a triangle related to this parallelogram, and find the triangle's area, base, and height.
  77. Trig functions and such

    1)Find the exact value of cot(-315) A)1 B)square root of 2 C)square root of 2 over 2 D)2 I chose C 2)Find the exact value of sin(-pi/6) A)-1/2 B)-square root of 3/2 C)-square root of 2/2 D)square root of 2/2 I chose A 3)In triangle ABC, C=30, c=22, and
  78. Math- HELP

    There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found the area of the
  79. Maths

    Anyone, please help: The figure below, not drawn to scale is made up of a square, a rectangle and a triangle, 1/6 of the square is shaded, 1/5 of the triangle is shaded and 1/4 of the rectangle is shaded. IF THE SHADED AREA IS 7/17 of the shaded area of
  80. math

    the dimensions of a triangle are shown below. if the height of the triangle is increased by a factor of 4, which statement will be true about the area of the triangle? a. the area will increase by the factor of 2 b. the area will increase by a factor of 4
  81. math

    1)The area A of a triangle varies jointly as the lengths of its base b and height h. If A is 75 when b=15 and h=10,find A when b=8 and h=6 2)Determine the equation of any vertical asymtotes of the graph of f(x)=2x+3/x^2+2x-3 1) Area of a triangle is 1/2
  82. geometry

    ABCD IS A PARALLELOGRAM.P IS A POINT ON SIDE CD.AREA OF TRIANGLE ADP=48 SQUARE CENTIMETRE AND AREA OF TRIANGLE BCP=30 SQUARE CENTIMETRE FIND AREA OF PARALLELOGRAM ABCD
  83. algebra

    the area A of a triangle with base b and height h is given by A=1/2bh,find the area when b=28m(meters) and h=38m. The area is m
  84. math

    ABC is a right-angled triangle atB. AB=(3x+2)cm and BC=2CM.GIVEN THAT THE AREA OF THE TRIANGLE IS 85CM SQUARE FIND THE VALUE OF X. Say that the height= 3x+2 base= 2 Area of a triangle equals 1/2 base times height so... (1/2) of the base is 1 and 1 times
  85. algebra 1A

    the area A of a triangle with base b and height is given by A=1/2h. find the area when b=16m(meters) and h=26. the area is 416m^2 is this correct? if not can you give me some direction? thanks
  86. chemistry

    what is the length of an equilateral triangle when the area is 45 meters square?
  87. Geometry

    The area of a triangle is 96. If the base of a triangle is tripled and the height is reduced to one-third its original length, what is the new area? 3 1/3 9 The area would not change I'm stumped:/ Please help? Thanks
  88. Math 116 Algerba

    The area A of a triangle with base b and height h is given by A= 1/2 bh. Find the area when b= 29m (meters) and h = 20m. The area is ?
  89. 5th grade

    For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?
  90. calculus-optimazation

    The sum of the perimeters of an equliateral triangle and square is 10. Find the dimensions of the triangle and square that produce a minimum total area.
  91. Math

    Application of Quadratic Equations The base of a triangle is longer than twice its corresponding height by 1 cm. The area of the triangle is 105 cm(square). Find the height of the triangle
  92. math

    A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? (1 point)
  93. maths please help

    how do you find the isoperimetric quotient of an n sided figure? my side lengths are 5cm i have split it in to triangles so 360/n is the central angle then to work out area of singular triangle its 1/2 base times height height is something like tan 180/n
  94. Math

    Please Check My Answer: Find the probability that you throw a dart and land in the region labeled "G" Here is a link to the image: I can't place it in here, but if you google the question, the very first image that pops up (A square with different colors
  95. Calculus

    Let (a, b) be any point on the graph of Prove that the area of the triangle formed by the tangent through (a, b) and the coordinate axes is 2. This is the solution from the solution manual The coordinates of the point are (a,1/a). The slope of the tangent
  96. math

    if a triangle with square attached have areas of 6 square units for the smallest square and 10 square units for the largest square, what is the missing area? what are the side lengths for the triangle?
  97. Calculus

    An isosceles triangle is to be drawn with its two equal sides of legth 10. What is the maximum possible area for the triangle? [Note: The area of a triangle is given by half the product of two sides with the sine of the included angle.]
  98. math

    Let P and Q be the points on the sides AB and BC of a triangle ABC respectively such that BP = 3PA and QC = 2BQ. Let K be the midpoint of the segment PQ. Prove that the area of the triangle AKC is equal to 11S/24, where S is the area of the triangle ABC.
  99. geometry

    right triangle ABC with right angle C, AC=22 and BC=6, altitude CD where D is on hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB? Write ratio as n:1 and round n to the nearest hundredth.
  100. Ms. Sue Please help!!!

    Ahhh... thank you "A square and an equilateral triangle have the same perimeter. Let A be the area of the circle circumscribed about the square and B be the area of the circle circumscribed about the triangle. Find A/B." It's a tough one.