Answer:
The missing angle B:
Step-by-step 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
