Question

Find the missing angle B

Answer 1

The missing angle B:

• m∠B = 25⁰

Explanation:

Given the angles

A = 100⁰

C = 55⁰

B = ?

We know that the sum of the angles of triangles is 180⁰.

so

A + B + C = 180⁰

100⁰ + B + 55⁰ = 180⁰

B = 180⁰ - 55⁰ - 100⁰

B = 25⁰

Therefore, the missing angle B:

m∠B = 25⁰