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What is the value/expression for the side length highlighted in green.

What is the value/expression for the side length highlighted in green.-example-1

1 Answer

4 votes

Answer:

15

Explanation:

The parallel lines divide the transversals proportionally.

The green length = 24 - c , then


(24-c)/(20) =
(c)/(12) ( cross- multiply )

12(24 - c) = 20c ← distribute left side

288 - 12c = 20c ( add 12c to both sides )

288 = 32c ( divide both sides by 32 )

9 = c

Then

green length = 24 - 9 = 15

User BrettAHale
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