Question

20) In a parallelogram ABCD, if A = 2x + 150 and B = 3x – 250 , then value of ‘x’ is (a) 910 (b) 890 (c) 340 (d) 380

Answer 1

Answer:

In ∥gm opposite angles are supplementary.

Therefore,

∠B+∠D=180∘

2x+25+3x−5=180∘

x= 180−20/5

=32

∠B=2x+25=(2∗32)+25=89∘

∠D=3x−5=(3∗32)−5=91∘

Step-by-step explanation:

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