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An equilateral triangle ABC surmounts a square BCDE such that side BC is common to both. Given this configuration, find the value of the expression: ∠...

SSC SSC CGL Tier 2 Medium Triangle and its various kinds of centres MCQ

Question

An equilateral triangle ABC surmounts a square BCDE such that side BC is common to both. Given this configuration, find the value of the expression:

∠EAB+3∠AEB\angle EAB + 3\angle AEB

Options

A.

60∘60^\circ

B.

80∘80^\circ

C.

280∘280^\circ

D.

240∘240^\circ

equilateral trianglesquareanglesisosceles trianglegeometry

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