The measure of an angle is 51°.

What is the measure of its supplement?

A.

39°

B.

49°

C.

129°

D.

139°

Question

Hailie Kerr

Mathematics

1 June, 19:24

The measure of an angle is 51°.

What is the measure of its supplement?

A.

39°

B.

49°

C.

129°

D.

139°

+3

Answers (2)

Know the Answer?

Anabella Terrell · Answer 1

Here you need to know that supplement is Equal to 180

Here how u would do it

51 + x=180

solve for x

x=180 - 51

x = 129

So c is the answer to your question

Nathalia Sandoval · Answer 2

Supplement of an angle is what must be added to that angle to get 180

51+supplement=180

minus 51 both sides

supplement=129

answer is C

The measure of an angle is 51°.What is the measure of its supplement?A.39°B.49°C.129°D.139°

The measure of an angle is 51°.

What is the measure of its supplement?

A.

39°

B.

49°

C.

129°

D.

139°