Question

Angles a and b are supplementary angles. What is the value of m La if m<b = 43°? (1 point)

Answer 1

Since angles a and b are supplementary, their sum must be 180°.

If m<b = 43°, then the measure of angle b is 43°.

Therefore, the measure of angle a can be found by subtracting 43° from 180°:

m<a = 180° - 43° = 137°

So, the value of m La is 137°.