Question

in triangle abc angle b 105 angle c 50 find angle a

Answer 1

Sum of angles of a triangle is =180°

a+b+c=180°

a+105°+50°=180°

=a+155°=180°

=a=180°-155°

=a=25°

Hence we got the answer.

Hope it helps

Answer 2

Answer :-

• Value of ∠A is 25°.

Given :-

• In a triangle ABC, ∠B = 105° and ∠C = 50°.

To Find :-

• ∠A

Solution :-

As we know that

Sum of all angles of a triangle is 180°.

According to question :-

∠A + ∠B + ∠C = 180°

→ ∠A + 105° + 50° = 180°

→ ∠A + 155° = 180°

→ ∠A = 180° - 155°

→ ∠A = 25°

Hence, value of ∠A is 25°.