in△ABC , M∠A = 63 and m∠C = 99 , what is the measure of angle B?

Answer 1

To find the measure of angle B in triangle ABC, we can use the fact that the sum of angles in a triangle is 180 degrees.

So, let's add the measures of angles A, B, and C:

∠A = 63 degrees
∠C = 99 degrees
∠B = ?

63 + 99 + ∠B = 180

162 + ∠B = 180

∠B = 180 - 162
∠B = 18

Therefore, the measure of angle B in triangle ABC is 18 degrees.