How to find the perimeter of a trapezoid - ISEE Lower Level (grades 5-6) Mathematics Achievement

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Question

Set_3

Figure not drawn to scale

Find the perimeter of the trapezoid.

Answer

In order to find the perimeter of the trapezoid, you must add up the lengths of all the sides of the trapezoid.

Because the lengths of the trapezoid are in inches, the answer is 40 in.

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Question

What would you call a polygon with four sides and four angles, all of different measurements?

Answer

A quadrilateral has four sides and four angles, but no restrictions on how the lengths or measures are related. Thus, quadrilateral is the right answer.

In squares and rectangles, all four angles measure 90 degrees; thus the angles are all of equal measurements, making square and rectangle incorrect answer choices. A rhombus has two sets of angles of equal measurements, and would also be incorrect.

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Question

Mrs. Green's garden is shaped like a trapezoid. She wants to build a fence on the perimeter of her garden. The sides of her garden measure . How long will the fence need to be?

Answer

To calculate the perimeter of a trapezoid, find the sum of the four sides.

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Question

The perimeter of a trapezoid is two times the base length plus two times the side lengths. True or False?

Answer

Since the two base lengths area not the same length, you must add them separately and not just multiple one of the by two.

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Question

Set_3

Figure not drawn to scale

Find the perimeter of the trapezoid.

Answer

In order to find the perimeter of the trapezoid, you must add up the lengths of all the sides of the trapezoid.

Because the lengths of the trapezoid are in inches, the answer is

Compare your answer with the correct one above

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