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Two adjacent angles of a parallelogram are $(5 x - 5)$ deg and $(10 x + 35)$ deg.
Find the value of $x$ .

Class 9Properties of a ParallelogramGeometry — Quadrilaterals

A10
B9
C11
D20

Step-by-Step Solution

Adjacent angles are supplementary:

(5 x - 5) + (10 x + 35) = 180, 15 x + 30 = 180, 15 x = 150, x = 10

.

Answer: A) 10

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