Theorem 3: Opposite Angles in a Parallelogram Are Equal
The opposite ...
Question
The opposite sides of a parallelogram are represented by 3x+12 and 5xā20. Find the length of the side of the parallelogram represented by 2xā5.
A
21
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B
18
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C
27
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D
15
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Solution
The correct option is C27 We know the opposite sides of a parallelogram are equal. So, 3x+12=5x−20 ⇒5x−3x=20+12 ⇒2x=32 ⇒x=16 Substitute the value of x in the value of side equation 2x−5 2x−5=2(16)−5=27