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

Question

Responses

137°

43°

47°

223°

Answer 1

If angles a and b are supplementary, then their measures add up to 180 degrees.

Since m∠b = 43°, the value of m∠a can be found by subtracting 43° from 180°.

180° - 43° = 137°

The value of m∠a is 137°.

Answer 2

Use the relationship between supplementary angles to determine the value of y° if x°=125° .

(1 point)
Responses

55°

305°

35°

125°

Answer 3

If angles x and y are supplementary, their measures add up to 180 degrees.

Since x° = 125°, we can find the value of y° by subtracting 125° from 180°.

180° - 125° = 55°

The value of y° is 55°.