Question

in a paralellogram ABCD ∠A = (2x + 10)° and ∠c = (3x - 20)° find value of x
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Answer 1

Answer:

angle A = angle C = 70 degree

Step-by-step explanation:

angle A = angle C (alternate angles of parallelogram are equal)

2x+10 = 3x-20

10+20 = 3x-2x

30 = x

Hence, angle A = 2x+10 degre = 2*30+10 = 70 degree

angle C = 3x-20 = 3*30-20 = 70 degree

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Answer 2

Answer:

<A and <C are opposite angles of a parallelogram

opposite angles of a parallelogram are equal

2x+10=3x-20

2x-3x=-20-10

x=30°

Angles are:

2x+10=2×30+10=60+10=70

3x-20=3×30-20=90-20=70

Step-by-step explanation:

I hope this answer may help you