Question

in the given figure ABCD, find value of x A=70 B=80 C=70 D= x​

Answer 1

Answer:

∠A+∠B+∠C+∠D = 360°

70°+80°+70°+x° = 360°

220°+x° = 360°

x° = 360°-220°

x° = 140°

VERIFY:

70+80+70+140 = 360

360 = 360

LHS = RHS

Hence, verified

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Answer 2

Answer:

the answer is 140

80+70+70-x=360°

220°+X=360°

X=140°