Question

In ABC, A = 65. If B - C = 25, find B.

Answer 1

Given=>

In ∆ABC, A = 65. If

B - C = 25----------(1

to find=>

B=?

solution=

We know that trangle total angle 180°

in trengle ∆ABC

=>A+B+C=180°

=>B+C=180°-65°(A=65° GIVEN)

=>B+C=115°----(2

EQ (1 AND (2 ADD

=>B+C+B-C=65°+115°

=>2B=180°

=>B=

$\frac{180}{2}$

=>B=90°

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answer=90°

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I hope it helps you