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Chapter 5: Q7 (page 192)

Each diagram shows a trapezoid and its median. Find the value of x.

Short Answer

Expert verified

The value of x is 4.

Step by step solution

01

Step 1. Label the diagram.

02

Step 2. Apply the property of trapezoid.

The length of the median of the trapezoid is equal to the average length of the two bases.

From the given figure it can be observed that FC is the median and ABandEDare the two bases of the trapezoid. Therefore, the length of the median is given by

FC=12AB+ED

03

Step 3. Description of step.

Substitute 2x−1for AB, 7x+3for ED, and 19 for FC into equation obtained in step 2 to find the value of x.

19=122x−1+7x+338=9x+29x=36x=4

Therefore, the value of x is 4.

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Most popular questions from this chapter

What values must x and y have to make the quadrilateral a parallelogram?

Given: ▱JQKS;PJ¯≅RK¯, Prove: ∠P≅∠R.

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