In ∆ABC, if ∠B = 76° and ∠C = 48°, find ∠A.

Question:

In ∆ABC, if ∠B = 76° and ∠C = 48°, find ∠A.

Solution:

In $\Delta A B C$,

$\angle A+\angle B+\angle C=180^{\circ} \quad$ [Sum of the angles of a triangle]

$\Rightarrow \angle A+76^{\circ}+48^{\circ}=180^{\circ}$

$\Rightarrow \angle A+124^{\circ}=180^{\circ}$

$\Rightarrow \angle A=56^{\circ}$

 

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Santo Potts
Feb. 14, 2023, 3:37 p.m.
Dear esaral.com administrator, Thanks for the valuable information!
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