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In DeltaABC ,/A=100^0 and A B=A Cdot Fin...

In `DeltaABC ,/_A=100^0` and `A B=A Cdot` Find `/_B` and `/_C`

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Verified by Experts

Given:
`AB=AC`
`∠B=∠C` [Angles opposite to equal sides are equal]
From angle sum propert of triangle
In `△ABC`,
`∠A+∠B+∠C=180^@`
`100^@+2∠B=180^@`
`∠B=40`
`therefore ∠B=∠C=40^@`
Hence, `angleB` and `angleC` measure `40^@`.
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