Question

a) In AABC, AB=BC, A=72. and C=2x, find the measure of B and C.
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Answer 1

Answer:

Given:

In AABC, AB=BC,

A=72. and C=2x

Let ∠ b be x

According to angle sum property,

⇒∠A+∠B+∠C=180°

⇒72°+x+2x=180°

⇒3x=180°-72°

⇒3x=108°

⇒x=108°/3

⇒x=36°

So ∠ b is 36° and ∠c is 72°.

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