# 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?

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### 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?

### 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 the base or leg equal ...

### 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 than its height. If ...

### 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?

### 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.

### 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 you have on the base b...

### 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.

### 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.

### 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.

### 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 = square root {10^2-(x/2...

### 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?

### math

The area of a triangle varies jointly with the height of the triangle and the length of its base. The area of one triangle is 200 square centimeters when its height is 25 centimeters and its base length is 16 centimeters. What is the area of a triangle having a height of 20 ...

### 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 the height (3x+2) is 3x...

### math

a rectangle with side of 6 cm and 5 cm has the same area as an isosceles triangle with base length 12 cm find the altitude to the base of the triangle and the sides of the triangle

### quadratics math

the height of a triangle is 4cm shorter than its base. if the triangle has an area of 48cm2, find the length of the base of the triangle.

### geometry

the hight of a triangle is four times the length of the base. find the base and height of the triangle if the area is 18 square inches?

### geometry

A right triangle has a base that is 2 more than twice the height. Find the length of the base for the triangle. If the area is 30 square units.

### 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.

### 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 side of length 2. point...

### algebra

To find the area of a triangle, you can use the expression b times h divided by 2, where b is the base of the triangle and h its height. what is the area of a triangle with a base of 6 and a height of 8? the area of the triangle is?

### GeOmEtRy!!!

a triangle has an area of 35 square inches. The base of the triangle is 4 inches less than twice the height. What is the length of the base of the triangle?

### 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 and the area is ...

### 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 and the area is ...

### 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 and the area is 87000...

### 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 and the area is 87000...

### 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 mean the vertices of the...

### 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 figure this out? Do I...

### geometry

If the height of a triangle is one inch more than twice its base, and if the area of the same triangle is 20 square inches, find the base and height of the triangle.

### math

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

### 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 C.p=4(s) D.Not here C? ...

### geometry

the area of a triangle is 338 square yards. the height of the triangle is four times its base find the height and base of the triangle

### 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.

### 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.

### 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 centimeters and the area is 93...

### 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 area of the original ...

### geometry

the area of a triangle is 27 square feet. its height is three times the length of its base. find the height and base of the triangle. i am unsure of how to set it up, please help

### 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, b = -4, c = 7, and d...

### MATH!

The length of a triangle is twice the width. The area is 32 square units. Find the length and width. I have the length of the triangle=2x and the width=x... so would the equation be 2x(x)=32 OR NO? Assume the "length" is the height measured from some side we will call the "...

### Math

A right triangle is formed by the origin and the x and y intercepts of the line 14x+7y=56. Find the area of the triangle. I know that Area of a triangle is 1/2bh, but how do I find the base and height? Thank you.

### math

a rectangle with side of 6 cm and 5 cm has the same area as an isoceles triangle with base length 12 cm.find the altitude to the base of the triangle and side of the triangle

### Algebra II

The height of a right triangle is 7 inches greater than the length of its base. If the area of the triangle is 15 square inches, find the base.

### 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

### 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

### (:

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 triangle has an area ...

### 11th grade math

in triangle DEF,<D=50 degree, DE=14 meters, and DF=10 meters. find the area of triangle DEFto the nearest tenth of a square meters

### 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?

### Math

in triangle DEF,<D=50 degree, DE=14 meters, and DF=10 meters. find the area of triangle DEFto the nearest tenth of a square meters

### 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 )=1Ã·3area (triangle ABC )

### 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 adf are 3,4, and 5 ...

### 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

### 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 ?

### 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, and 5 respectively. ...

### 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 aef 2. equialateral ...

### 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 an answer!! can you ...

### San Bernardino valley college

The height of a triangle is 3 inches less than 5 times the length of its base. The area is 34 square inches. Find the length of the base and the height of the triangle.

### S.E.U

The area A of a triangle with base b and height h is given by A= 1/2 bh. Find the area when b= 22 m (meters) and h= 26 m. The area is ??? m2

### 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.

### 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?

### 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

### Geometry

A right triangle and a square share a side. The hypotenuse of the triangle measures 10 cm. One base of the triangle measures 4 cm. Neither the known base nor the hypotenuse is the side that is shared with the square. Find the area of the square.

### 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 is in the square at ...

### math

the height of a triangle is 5 cm more than the length of the base. if the area of a triangle is 133 cm^2 find the hight nad length of the base

### 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

### 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.

### math

Question 2.2. The height of a triangle is 5 m less than its base. The area of the triangle is 42 m2. Find the length of the base. (Points : 1) 12 m 11 m 8 m 7 m i think it's 12m

### Geometry

A farmer is estimating the surface area of his barn to find how much paint he needs to buy. One part of the barn is triangular as shown. The base of the triangle is 22 meters long Both angles on either side connecting the base to each leg is 30 degrees. (It looks like an ...

### Algebra

The height of a triangle is 4 centimeters less than twice the length of its base. If the total area of the triangle is 48 square centimeters, then find the lengths of the base and height.

### 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 areas of traingle cef, ...

### Algebra

the area of a triangle can be determined by using the formula A= 1/2bh, where b is the length of the base, and h is the length of the height. Determine the area of a triangle with a base which is 7x to the 2nd power and a height which is 8x feet.

### math

The area of a triangle is 600 square feet. Find the altitude, in feet, of the triangle if the length of the corresponding base is 30 feet.

### math plz check ;-;

A triangle has sides of lengths 5 cm, 5 cm, and square root 47cm. Which of the following statements is true? A. The triangle is an obtuse triangle because (√47)^2>5^2+5^2 B. The triangle is an acute triangle because 5^2<5^2+(√47)^2 C. The triangle is an acute...

### math plz check ;-; sorry

A triangle has sides of lengths 5 cm, 5 cm, and square root 47cm. Which of the following statements is true? A. The triangle is an obtuse triangle because (√47)^2>5^2+5^2 B. The triangle is an acute triangle because 5^2<5^2+(√47)^2 C. The triangle is an acute...

### 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. Determine the lengths of ...

### geometry

in a triangle D =h+4, area of triangle is 120 sq .cm . then find the base and height of triangle

### pre calculus

The base of an Isosceles triangle is half as long as the two equal sides. Write the area of the triangle as a function of the length of the base. the answer is: A=a^2times the square root of 15 ------------------------------ 4 How did they get this answer? Thanks!

### Precalculus

The sides of an isosceles triangle are 10 cm, 10 cm, and 12 cm. A rectangle is inscribed in the triangle with one side on the triangle's base. The other two vertices of the rectangle are on the triangle's legs. Find the Maximum Area of the Rectangle.

### 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?

### Math ttriangles

how would I find the hieght of a isocscles triangle if the base was 20 and the area was 240? To find the height of an isocsceles triangle With the area at 240 and the base at 20 aren't you supposed to divide 240 by 20? If so what is your answer? The area of a triangle is 1/2 ...

### 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) . The value of a+b+c ...

### 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

### 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 circle..it is 28.27 in.^2 I am...

### math

The perimeter of an isosceles triangle is 16 in. The area of the triangle is 12 sq in. If the base is x in, the height is 4 in and the legs are y in, find the length of the three sides.

### Math problem

The area of a triangle is equal to 1/2 the hight times the base. A triangle has a height of 10 and a base of 20. If the height of the triangle is increased by 10% and the base is decreased by 10%, then the area of the new triangle formed___________. ? a)stayed the same b) ...

### 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 =2.5 /height length ...

### math problem

The area A of a triangle with base b and height h is given by A = ½ bh. Find the area when b = 24m (meters) and h = 12m.

### algebra

The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.

### geometry

in order to find the area of a regular hexagon using the formula Area=1/2(nxs)(a)you must frist find the apothem whie vertical leg of a 30-60-90 triangle with the base of 3. Find the length of the apothem in the 30-60-90 triangle

### 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?

### 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 not sure how to find ...

### Geometry

Given: X, Y, and Z are the midpoints of the sides of triangle ABC. Find rhe ratio of the area of triangle XYZ to the area of triangle ABC

### geometry

The perimeter of an isosceles triangle is 42 cm . its base is 2/3 times the sum of the equal sides . find the length of each side and the area of the triangle.

### Algebra

The height of a triangle is 8 m more than twice the length of the base. The area of the triangle is 32 m^2. Whats the height of the triangle

### calculus optimization max min

find the dimensions of the rectangular area of maximum area which can be laid out within a triangle of base 12 and altitude 4 if one side of the rectangle lies on the base of the triangle thanks

### math need help please

The area H of a triangle with base b and height h is given by H=1/2bh. Find the area when b=21m (meters) and h=38m.

### 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)

### math

an isolation triangle has a base of 6 units and a height of 12 units. find the maximum possible area for a rectangle that is inscribed in the triangle and has one side resting on the base of the triangle. what are the dimensions of the rectangle of maximum area?

### geometry

Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the small triangle rounded...

### geometry

Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the small triangle rounded...

### math

The height of a triangle is 4 inches more than the base. The area of the triangle is 35 square inches. Find the base and height of the triangle.