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Allushta [10]
3 years ago
8

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B?

Mathematics
2 answers:
Lunna [17]3 years ago
7 0

we are given

Angles A and B are supplementary

we know that when angles are supplementary

then sum of all these angles must be 180

we have

first angle is A

second angle is B

we get

A+B=180

now, we have

A=80

so, we can plug it and solve for B

80+B=180

Subtract both sides by 80

80+B-80=180-80

B=100.................Answer


Mice21 [21]3 years ago
7 0

<u>Answer:</u>

B = 100°

<u>Step-by-step explanation:</u>

Two angles are said to be supplementary if the sum of both the angles is equal to 180 degrees.

Supplementary angles do not necessarily have to be next to each other as long as they add up to 180 degrees.

In the given problem, we know that angle A = 80°. If A and are supplementary angles, then:

A+B= 180°

80°+B=180°

B= 180°-80°

B=100°

Therefore, angle B = 100°.

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