# The area of a triangle with base b and height h is given by the formula A = &frac12; bh. Find the area of a triangle when the base is 9.0 cm and the height is 6.2 cm.

130,251 results, page 42

### geometry

if triangle MNO is an acute triangle and MN=x-1, NO=x+1, and MO=8, then what are the possible solutions of x?

### Vectors

A triangle has vertices A(2,3,7), B(0,-3,4) and C(5,2,-4) a.) Determine the largest angle in the triangle.

### math

what is all the properties to an equilateral triangle? and to a obtuse triangle?

### geometry

An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle?

### Geometry

a triangle has sides of lengths 12, 14, and 19 is it a Right Triangle? Explain

### geometry

A triangle has side lengths 24, 32, and 42. Is it a right triangle? Explain

### Calculus

Use the information to evaluate and compare (triangle)x and dy. y=2-x^4, x=2, and (triangle)x=dx=0.01

### Basic Geometry

What does ' mean? ie. triangle abc is congruent to triangle a'b'c'

### algebra 1

the side of a triangle ae 3x+2,6x-1, and 7-x. espress the perimeter of the triangle in terms of x.

### Math

An equilateral triangle has a perimeter of 45 ft. What is the length of each side if the triangle?

### Pythagorean theorem

How do I check my answer when my triangle is an Acute Triangle?

### math

if the are of the circumcircle of an equilater triangle be 616 sq.m..,then hight of the triangle is.??

### geometry

For which value of x is triangle RST congruent to triangle UVW?

### Math

A rectangle has sides of length x cm and 2x - 4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t>=0) . Show that the area, A cm^2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant when t = 2.

### English

1. In an hour, we arrived at the base. 2. After an hour, we arrived at the base. 3. In an hour, we will arrive at the base. 4. After an hour, we will arrive at the base. (Which preposition do we have to use? Which ones are correct?)

### Math

The area of a parallelogram with a side of 5.6 in is equal to the area of a rectangle with sides 7 in and 8 in. Find the altitude to the given side in the parallelogram.

### Math

The area of a parallelogram with a side of 5.6 in is equal to the area of a rectangle with sides 7 in and 8 in. Find the altitude to the given side in the parallelogram.

### Math

A norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window with maximum area if the total perimeter is 16 feet. X = the width of the rectangle. Y = the length of the rectangle. X/2 = the radius ...

### math

A particular model of walkie-talkie can broadcast in a circular area. The radius of the broadcast area is 10,000 feet. Find the area of this circle to the nearest square foot. Use 3.14 for pi.

### Calculus

The ride has 100 metres of fencing to make a rectangular enclosure as shown. link for the image imageshack com /a/img909/2881/WTnncK.jpg It will use existing walls for two sides of the enclosure, and leave an opening of 2 metres for a gate. a Show that the area of the ...

### Math

A triangular region is bound by the three lines 2x+y-12=0, y=3x-3, and y=1/7x-81/7. What is the circumcentre of this triangle? I can find the answer using a graph, but I don't know the formula to find the mid segments of the lines.

### Algebra

Write a formula to express the given relation. The area A of a rhombus is one-half the product of the diagonals p and q.

### Honors Chemistry

I need someone to check these questions. I know its a lot of questions. 2NH3 + Ag+ Ag(NH3)2+ a. What is the Lewis acid in this equation? [Ag+] b. What is the Lewis base in this equation? [NH3] Given H2SO4 is sulfuric acid, HNO3 is nitric acid, and H3PO4 is phosphoric acid, ...

### test corrections for problems 6,11,12 and 23please

A sports team is building a new stadium on a lot of land. The lot measures 8x by 12x and the field will be 3x by 6x. how much land will be left for the bleachers, restrooms, and other parts of the stadium? So would I use the foil method or would I use the distributive. Or ...

### trignometry

prove that the area of any triangle XYZ is y^2*sin(x)*sin(z)/2*sin(y)

### trignometry

prove that the area of any triangle XYZ is y^2*sin(x)*sin(z)/2*sin(y)

### SCIENCE PLZZ HELP!!!

Given equal concentrations, which of the following produces the fewest hydronium ions in an aqueous solution? strong acid weak acid strong base weak base This is the only question i need help on and i have no clue what ut is! any help?

### basic geometric

a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur? answered below. Interior angles of a triangle is equal to 180 degrees. A triangle only has 3 angles. You have two of them ...

### Area of triangles

Aubrey is painting a mural of an ocean scene. The triangular sail on a sailboat has a base of 4 feet and a height of 6 feet. Aubrey will paint the sail using a special white paint. A can of this paint covers 10 square feet. How many cans of white paint will Aubrey need?

### algebra story problems

You have a metal plate that you have drilled a hole into. The entire area enclosed by the metal plate is given by 5x^2 = 12x + 10 and the area of the hole is given by x^2+2. Write an expression for the area in factored form of the plate that is left after the hole is drilled.

### Pre-Calculus

Composition of Functions f o g(x)=f(g(x)) --> I know that this is eqivalent to f(g(x)) Given f(x) = 2x+1, and g(X) = 3x+1 find:f o g(x)=f(g(x)) This is what I did, but I don't think Ive solved it correctly f(g(x)) = f(x-3) f(x-3) = 1(x-3)-3x+2 =x-3-3x+2 f(g(x)) = -2x-1 The ...

### Geo (locus)

I don't fully get this stuff but some of these I guessed on and some I think I;m close so will someone check/ help me please? * is the answer I put 1. Point A is 0.5 cm from j. k and k are parallel and 1 cm apart. Find the locus of points that are 0.75 cm from A and ...

### Chemistry

This question is based on an experiment to determine the mass of ASA. Information from the experiment : • ASA is a weak acid with a Ka value of 3.2 x 10^-4. • An ASA tablet has an approximate mass of 500 mg. • The experiment used a titration with a standardized 0.100 mol...

### math

A trapezoid has an area of 96 square inches. It has a night of 12 inches and one of its bases is 6 inches. Determine the length of its other base

### Algebra

represent the relationship between the number of triangles and the perimeter of the figures they form. fill in table below. triangle 1: 6-6-5(b) triangle 2:6-6-5(b)&(H) triangle 3: 6-6-5 (b)-5 (B) 5 (h) fill in number of triangles-1, 2, 3, and perimeter they have? Help

### calculus

Find the volume of the solid S that satisfies the two following conditions. First, the base of S is the elliptical region with boundary curve 9 x2 + 4 y2 = 36, and second, the cross-sections of S perpendicular to the x-axis are isosceles right triangles with hypotenuse in the ...

### algebra

does log base of 4 sqrt(t/s)=1/2log base of 4 t - 1/2log base of 4s? sqrt=square root thanks yes yah thanks!

### maths

A roof section of a house is a large triangle. it measures 6.4 meters at the base and is 3.8 meters high. If one liter of paint covers 3 meters square, how many litres are needed to paint this section twice? Answer to the nearest litre.

### Pre-calc

Can someone please show me the steps to this problem...Thanks in advance. Let f(x) = Ð9xÐ. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)

### math

the square tile shown has a length of 10.5 inches. What power can you write to represent the are of the tile? Write the power as an expression with a base and an exponent, and then find the area of the square.

### Math

Eddie measured his aquarium using a small fish food box. The box has a base area of 6 inches and a height of 4 inches. Eddie found that the volume of his aquarium is 3,456 cubic inches. How many boxes of fish food could fit in the aquarium?

### Physics (cone in water) buoyancy

h ttps ://s.yimg . com /hd/ answers /i /23e5f0847 ba74d75b223556433442f6f_A.jpeg?a=answers&mr= 0&x=1442542068&s =0f4a516a 3f24689d44f 28091e846bb0d link to see part a answer and an image of what is problem is. A cone of density p_0 (rho) and total height l floats in a liquid ...

### math

A right circular cylinder of radius r and height h is inscribed in a right circular cone of radius R and height H, as shown on the right figure. Find the value of r (in terms of R and H) that maximizes the total surface area of the cylinder (including top and bottom). Comment ...

### math

a plane intersects a square pyramid perpendicular to its base but not through a vertex.The plane forms a cross section what is the shape of the cross section a)trapezoid b)triangle c)square d)rectangle

### Word Problems

1. Express the area of a square as a function of its diagonal. 2. The height of a cylinder is half the diameter. Express the total surface area as a function of the height. SA = 2πh + 2πr^2

### Math

1. Write the ratio in the simplest form. 50:10 (a) 25:5 (b) 10:2 (C) 5:1* (D) 1:5 2. Solve the following proportion. p/6=7/8 (a) p=5.25 (b) p=8 (c) p=10.5* (d) p=42 3. Chris's uncle has a model car. The model is 6 inches long and 3 inches wide. The actual cars is 75 inches ...

### trig

refer to right triangle ABC with C = 90degrees. Given a= 2 and b=√5 Find the six trigonometric functions of A. and find the angles A and B

### Math

Find the height of the tower to the nearest tenth of a meter. the dimensions are 58 degrees and 36m. [its a right angle triangle]

### elem math

jenna drew a triangle with 1 right angle. what type of triangle did she draw? Can a triangle 2 right angles? trinka stood inside a circle of friends to play a game. each friend in the circle is the same distance from trinka. what part of the circle does trinka's position ...

### trig

which ser of lenths will form a triangle with greater area? 6ft,8ft, 10ft or 6ft,8ft,12ft...

### Math

A tree broke due to storm at a point but did not get separate . its tops touched the ground at a distance of 10 m from its base if the height of the point from the ground at which the tree was broken is 12\25 of the total height of the tree find its height

### math

what is the lateral surface area of a right hexagonal prism whose base is a regular hexagon with sides measuring 8 incheslong and altitude measuring 6 inches tall

### 15-75-90 triangle??

what is the formula for these triangles ?

### science

For a given area of land, the average rate of creep is 14 mm per year. How long will it take the area to move 1 m?

### algebra

In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

### math

In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

### geometry

Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of the triangle?

### pre-algebra

Assume that triangle ABC is congruent to triangle XYZ. If AB=12cm and BC=15cm, what is the length of segment YZ?

Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.

the lengths of two sides of a triangle are 15in.each.the third side measures 10 in.what type of triangle is this

### Math

Triangle ABC is an obtuse triangle with two congruent angles. If m< C = 108 write an expression that represents m<A

### geometry

describe the 2 transformations, the first followed by the second that combined will transform triangle ABC and triangle DEF. 23) A(-3,3), B(-3,1), C(0,1) D(6,6), E(6,2), F(0,2) 24)A(6,0), B(9,6), C(12,6) D(0,3), E(1,5), F(2,5)

### Math ( please helllp )

The sides of a triangle have lengths ; 2x-1,x+3,3x-4 . Which of the following describes the perimeter of the triangle in terms if "x"

### math 8

the measure of one angle of mnois 90 degrees . this means that the triangle can be classified as a -? triangle Would it be obtuse?

### physic

3 charges sit on vertical equilateral triangle the side of each is 30.0 cm. if the triangle are A= +4.0 uC B=+5.0 uC and C=+6.0 uC (clockwise from top) what is the force on each charge?

### Geometry

If the measures,in degrees, of the three angles of a triangle are x, x+10, and 2x-6, the triangle must be: A.right,B.equilateral,C.Scalene, D.Isosceles

### Math

If I know all 3 angles of a right triangle and the hypotenuse how do I figure out the short side length of the triangle?

### Geometry

A triangle has a perimeter of exactly 24 units. Which of the following could be the vertices of the triangle? A.) (-1,3),(2,-1),(-1,-1) B.) (6,0),(6,7)(0,7) C.) (-1,-1),(-6,-13),(-9,-9) D.) (-3,-4),(3,-4),(3,4) I am not sure on this one any help would be great

### Kitondo boys

A triangle has vertices X(2,2) ,Y(4,2)and Z(3,4).The triangle is enlarged by a scale factor 2 through the origin.What are the coordinates of the image?

### Physics

Three charges +2q, -q and -q are placed at the vertices of an equilateral triangle. What is the electric field and the potential at the circumcenter of the triangle?

### Math

Triangle ABC is an acute triangle. If all angles are measured to the hundredths,what is the smallest angle measurement?

### Geometry

A triangle has side lengths of 4, 5, and 6. Which of the following correctly classifies this triangle. Acute, Right, Obtuse, Isosceles.

### Math

Are these correct: 1a) Find the lateral surface area in square inches of the cone with the following dimensions: h= 24 in, radius = 10 in, slant height = 26 in. (Use Pi= 3.14) I didn't know how to do: Lateral Surface Area = ______ square inches (exact answer) 1b) Find the ...

### math

Can someone please check my answers and help me with the last question! 1. Solve sin2xcos2x = 4sin2x on the interval [0, 2pi] 0, pi, 2pi? 2. Exact value of sin(pi/12) - sin(5pi/12) root3/4? 3. Using factorial notation, 0! = 1 False? 4. Find the area of the following triangle. ...

a plane intersects a square pyramid perpendicular to its base but not through a vertex.The plane forms a cross section what is the shape of the cross section a)trapezoid b)triangle c)square d)rectangle

### Math

Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

### Algebra

Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

### geometry- need help

Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches b. a can with diameter...

### calculas

can anyone help me with this question? A baseball diamond is a square whose sides are 90 ft long. Suppose that a player running from second base to third base has a speed of 30 ft/sec at the instant when he is 20 ft from the third base. At what rate is the player’s distance ...

### Trigonometry

Hi, this question concerns a right angled triangle. If I know the hypotenuse of the triangle is 16cm and I know the adjacent side to an unknown angle is 14cm which trigonometric ratio would I need to find the unknown angle? Many thanks

### physics

two equal masses of 5kg are placed on two vertex of an an equilateral triangle and 20 kg mass on the third.each side is 20 cm long. find the force acting on 1 kg mass kept at the centroid of the triangle.

### Math: Pre-Calc

A right triangle has hypotenuse 5 inches long. Its area is 4 square inches. How long are the other sides?

### trig

AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50° (a) the length BC (b) The size of angle ABC; (c) The size of angle CAD (d) The area of triangle ACD

### math

AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50° (a) the length BC (b) The size of angle ABC; (c) The size of angle CAD (d) The area of triangle ACD

### Geometry

The volume of a cylinder is 250pie cm^3 and the height is 10 cm. Find the circulference of the base to the nearest hundredth of a centimeter.

### Math

2. Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. a. 324 cm^3 b. 108 cm^3 c. 36 cm^3 d. 152 cm^3

### maths - geometry

if the points A(1,-2) B(2,3) C(-3,2) and D(-4,-3) are the vertices of the paralleogram ABCD, then taking AB as the base, find the height of parallelogram.

### math

find the volume of a square pyramid. Round to the nearest tenth(slant height=20 base=13)

### trigonomety

FIND THE HEIGHT OF A TREE,IF 120 FT. FROM ITS BASE THE ANGLE OF ELEVATION OF ITS TOP IS 10 DEGREE 18 MINUTES

### Just trying to find the correct size for a project

If isosceles angles are 45, 67.5 and 67.5 with a height of 5.25" what is the length of the base?

### math

one of the angles of a triangle is 100 degree and the other two angles are equal. find each of the equal triangle

### physics

Two point charges of the same magnitude but opposite signs are fixed to either end of the base of an isosceles triangle. The electric field at the midpoint M between the charges has a magnitude EM. The field directly above the midpoint at point P has a magnitude EP. The ratio ...

### Math

Calculate the slant height for the given square pyramid. Round to the nearest tenth. Pyramid base= 6cm Height= 5cm 6.2 cm 5.8 cm 7.8 cm 7.2 cm I am usually very good at solving these kinds of problems but I cant focus on anything right now and I keep getting thrown off. I'm ...

### math

Area of the four walls of a room is 108 m2. If the height and length of the room are in the ratio of 2 : 5 and the height and breadth in the ratio 4 : 5, then the area, in m2, of the floor of the room is :

### math

a poster is 25cm taller than it is wide. it is mounted on a piece of cardboard so that there is a 5cm border on all sides. if the area of the border alone 1350cm^2, what are the dimensions of the poster? It is almost a must to draw a diagram but I can't do that on the computer...

### CALCULUS 2

Use calculus to find the volume of the following solid S: The base of S is an elliptical region with boundary curve 9x^2+4y^2=36. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.

### college

1) You are given solutions of HCl and NaOH and must determine their concentrations. You use 37.0mL of NaOH to titrate 100mL of HCl and 13.6 mL of NaOH to titrate 50.0mL of 0.0782 M H2SO4. Find the unknown concentrations. Molarity of NaOH and molarity of HCL? 2) Sodium ...

### Chemistry

1) You are given solutions of HCl and NaOH and must determine their concentrations. You use 37.0mL of NaOH to titrate 100mL of HCl and 13.6 mL of NaOH to titrate 50.0mL of 0.0782 M H2SO4. Find the unknown concentrations. Molarity of NaOH and molarity of HCL? 2) Sodium ...

### Algebra 2

I am trying to find the inverse of these functions. Can someone please check my answers and tell me how to do number 2? 1. y=7^x y=log base 7 x 2. y=log base 1/2 x 3. y=2^(x)-3 y=2^(x+3) 4.y=6+log x

### math

AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50°.   Calculate to 2 decimal places      (a) the length BC            (b) The size of angle ABC;          (c) The size of angle CAD           (d) The area of triangle ACD