High School Math : Geometry

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #24 : How To Find The Area Of A Circle In Pre Algebra

Find the area of a circle with a circumference of .

Possible Answers:

Correct answer:

Explanation:

The circumference equation is 

If we plug  into the equation, we can solve for the radius, which is .

 

Now, we look for the area of the circle based on the equation 

Example Question #132 : Geometry

The area of a circle is  . What is its radius? 

Possible Answers:

Correct answer:

Explanation:

Here, we are given the area of a circle and asked to solve for the radius. We know that the formula for the area of a circle is

Plugging in the area, we can cancel out the pi on each side of the equation, so that 

Taking the square root, we find that 

Example Question #131 : Geometry

Find the diameter of a circle with an area of .

Possible Answers:

Correct answer:

Explanation:

The area formula is 

Plugging in the given number for A, we can solve for the radius and find that the radius is 8.

The diameter is twice the radius, so the diameter is .

Example Question #1 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

Rectangle

The drawing above shows the base of a solid rectangular prism.   and .  If the height of the rectangular solid is 3, what is its volume?

Possible Answers:

Correct answer:

Explanation:

Example Question #132 : Geometry

What is the volume of a cube with a side of 

Possible Answers:

Correct answer:

Explanation:

The formula for volume of a cube is .

Plug in our given side and solve:

Example Question #2 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

What is the side of a cube if its volume is ?

Possible Answers:

Correct answer:

Explanation:

The formula for volume of a cube is  or .

For this cube that means .

Take the cube root of both sides:

Example Question #3 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

What is the volume of a rectangular prism with a length of , height of , and width of ?

Possible Answers:

Correct answer:

Explanation:

The formula for volume of a rectangular prism is .

Plug in our given information:

Example Question #5 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

What is the volume of a rectangular prism with a length of , width of , and height of ?

Possible Answers:

Correct answer:

Explanation:

The formula for volume of a rectangular prism is .

Plug in our given information:

Example Question #4 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

What is the volume of a cube with a side length of ?

Possible Answers:

Correct answer:

Explanation:

To find the volume of a cube you must cube the side length.

The equation looks like this:

Cube the side length, , to find the answer:

The answer is .

Example Question #5 : How To Find The Volume Of A Rectangular Solid In Pre Algebra

What is the volume of a rectangular solid with a base of , length of , and height of ?

Possible Answers:

Correct answer:

Explanation:

To find the volume of a rectangular solid we must know the equation: 

We then plug in our numbers for base, length, and height:

Multiply to get the answer of .

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