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In the parallelogram below, if side AD = 25 and side BC = 3x + 10, find x.

In the parallelogram below, if side AD = 25 and side BC = 3x + 10, find x.-example-1
User Yany
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1 Answer

11 votes
11 votes

In a parallegram, opposite sides are always congruent.

Therefore, we can say that AD = BC since they are opposite sides.

With this relationship of AB and BC, let's find x.

AD = BC

25 = 3x + 10

3x + 10 = 25

3x = 25 - 10

3x = 15

3x/3 = 15/3

x = 15

Therefore, x = 15

The answer is CHOICE D.

User Jourmand
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