MAP 6th Grade Math : Geometry

Study concepts, example questions & explanations for MAP 6th Grade Math

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Example Questions

Example Question #1 : Geometry

What is the area of the right triangle in the following figure?

1

Possible Answers:

Correct answer:

Explanation:

There are several different ways to solve for the area of a right triangle. In this lesson, we will transform the right triangle into a rectangle, use the the simpler formula for area of a rectangle to solve for the new figure's area, and divide this area in half in order to solve for the area of the original figure.

First, let's transform the triangle into a rectangle:

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Second, let's remember that the formula for area of a rectangle is  as follows:

Substitute in our side lengths.

Last, notice that our triangle is exactly half the size of the rectangle that we made. This means that in order to solve for the area of the triangle we will need to take half of the area of the rectangle, or divide it by .

Thus, the area formula for a right triangle is as follows:

 or 

Example Question #2 : Geometry

What is the volume of the rectangular prism in the following figure?

2

Possible Answers:

Correct answer:

Explanation:

The formula used to find volume of a rectangular prism is as follows:

Substitute our side lengths:

Remember, volume is always written with cubic units because volume is how many cubic units can fit inside of a figure. 

Example Question #3 : Geometry

Hydraulic fracturing is a process used by gas companies to rupture and collects pockets of gas trapped within pockets of shale rock. A particular shale fracking site is  in length and occupies an area of . How wide is this particular site?

Possible Answers:

Correct answer:

Explanation:

In order to solve this question, we need to first recall how to find the area of a rectangle.

Substitute in the given values in the equation and solve for .

Divide both sides by 

Dividing by a fraction is the same as multiplying by its inverse or reciprocal.

Find the reciprocal of 

Simplify and rewrite.

Multiply and solve.

Reduce.

The width of the fracking site is 

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