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High School Math : Geometry

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Example Questions

Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of 120 ?

Possible Answers:

A=200

A=4800

A=2400

A=9600

Correct answer:

A=4800

Explanation:

The equation for the area of a triangle is .

We plug the base of and the height of 120 into the equation to get $A=\frac{1}{2}(80)(120)$ .

We then multiply to get the answer of A=4800 .

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Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of ?

Possible Answers:

A=192

A=112

A=120

A=98

Correct answer:

A=112

Explanation:

The equation for the area of a triangle is

We plug the base of and the height of into the equation to get

$A=(\frac{1}{2})(8)(28)$

We then multiply to get the answer of A=112 .

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Example Question #11 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of ?

Possible Answers:

Correct answer:

Explanation:

To find the area of a triangle, use the equation:

$Area=\frac{1}{2}(Base)(Height)$

Substitute the given values for base and height into the equation:

$Area=\frac{1}{2}(5)(14)$

Area=35

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Example Question #41 : Area Of A Figure

Find the area of a triangle with a base of 3 inches and a height of 14 inches.

Possible Answers:

$24\ in^{2}$

$21\ in^{2}$

$42\ in^{2}$

$48\ in^{2}$

$52\ in^{2}$

Correct answer:

$21\ in^{2}$

Explanation:

Apply the formula for the area of a triangle: $\frac{1}{2}bh$

A = 3 * 14 * (1/2) = 21

Make sure that your units are squared.

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Example Question #51 : Area Of A Figure

Find the area of a triangle with a base of 16 meters and a height of 4 meters.

Possible Answers:

$108\ m^{2}$

$32\ m^{2}$

$30\ m^{2}$

$112\ m^{2}$

$64\ m^{2}$

Correct answer:

$32\ m^{2}$

Explanation:

Area of a triangle = $\frac{1}{2}bh$

= (1/2) * 16 * 4

= 32

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Example Question #52 : Area Of A Figure

What is the area of this triangle?

Possible Answers:

Correct answer:

Explanation:

The area of a triangle can be calculated using this equation $\small A=\frac{1}{2}bh$ .

In this question, the base, , is . The height, , is .

$\small A=\frac{1}{2}bh=\frac{1}{2}(8)(6)=\frac{1}{2}(48)=24$

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Example Question #101 : Geometry

What is the area of circle with a radius of ?

Possible Answers:

$18\pi$

$9\pi$

$81\pi$

Correct answer:

$81\pi$

Explanation:

To find the area of a circle you must plug the radius into in the following equation

In this case the radius is so we plug it into to get $9^{2}=81$

We then multiply it by $\pi$ to get our answer $A=81\pi$ .

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Example Question #1 : How To Find The Area Of A Circle In Pre Algebra

What is the area of a circle with radius of ?

Possible Answers:

$3\pi$

$27\pi$

$9\pi$

$2\pi$

$6\pi$

Correct answer:

$9\pi$

Explanation:

The formula for the area of a circle is $A=\pi r^2$ .

Plug in our given values:

$A=\pi r^2$

$A=\pi*3^2$

$A=9\pi$

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Example Question #2 : How To Find The Area Of A Circle In Pre Algebra

What is the area of a circle with a radius of ?

Possible Answers:

$8\pi$

$16\pi$

$32\pi$

$2\pi$

$4\pi$

Correct answer:

$16\pi$

Explanation:

The formula for the area of a circle is $A=\pi r^2$ .

Plug in the information given and solve:

$A=\pi * 4^2$

Remember, a number squared is just the same as that number times itself:

$A=\pi*(4*4)$

$A=16\pi$

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Example Question #3 : How To Find The Area Of A Circle In Pre Algebra

If the area of a circle is $64\pi$ , what is the radius of the circle?

Possible Answers:

Correct answer:

Explanation:

The formula for the area of a circle is $A=\pi r^2$ .

Plug in the information given and solve:

$64\pi = \pi r^2$

Notice that the $\pi$ 's cancel out:

64=r^2

Take the square root of both sides:

$\sqrt{64}=\sqrt{r^2}$

8=r

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High School Math : Geometry

Study concepts, example questions & explanations for High School Math

All High School Math Resources

Example Questions

Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #11 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #41 : Area Of A Figure

Example Question #51 : Area Of A Figure

Example Question #52 : Area Of A Figure

Example Question #101 : Geometry

Example Question #1 : How To Find The Area Of A Circle In Pre Algebra

Example Question #2 : How To Find The Area Of A Circle In Pre Algebra

Example Question #3 : How To Find The Area Of A Circle In Pre Algebra

All High School Math Resources

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