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Two adjacent angles of a parallelogram are (2x+25)° and (3x-5)°. The value of x is (a) 28 (b) 32 (c) 36 (d) 42

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Two adjacent angles of a parallelogram are (2x+25)° and (3x-5)°. The value of x is

(a) 28 (b) 32 (c) 36 (d) 42

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(b) 32

Explanation:

We know that sum of adjacent angles of a parallelogram is 180o

(2x+25)o + (3x-5)o= 180o

5x + 20 = 180o

5x = 180o-20o

5x = 160o

x= 160o/5 = 230

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