Question

Compute the value of x

Answer 1

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HOPES THIS HELPS YOU..............☺☺

Answer 2

Solñ: Let, angle B=x

∆EAC=180°

»angle EAB+angle BAC=180°

»120°+angle BAC=180°

»angleBAC=180°-120°=60°

Again,

∆BCD=180°

»angle ECD+angle BCA=180°

»112°+angle BCA =180°

»angleBCA=180°-112°

»angleBCA=68°

Therefore,

∆ABC=180°

»angleBAC+ angle ABC + angle BCA=180°

»60°+68°+ angle ABC=180°

»angleABC=180°-128°

angle ABC=52°

:. angle ABC=x=52°

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