Use the relationship between supplementary angles ∠a and ∠b . What is m∠a if m∠b=121° ?(1 point)
If two angles are supplementary, it means that the sum of their measures is 180 degrees. Therefore, if m∠b = 121°, then m∠a can be found by subtracting 121° from 180°:
m∠a = 180° - 121° = 59°
Use the image to answer the question.
A line from top left to bottom right intersects two parallel lines that extend from bottom left to top right. The intersection with the first parallel line is labeled A. The intersection with the second parallel line is labeled B.
Determine whether the two angle measurements can be supplementary if m∠A=37° and m∠B=143° . What is the reasoning behind the answer?
Responses
Yes, they are a supplementary pair.
Yes, they are a supplementary pair. - not selected, this is the correct answer
No, they do not add up to 90°.
No, they do not add up to 90 degrees. - no response given
No, they do not add up to 180°.
No, they do not add up to 180 degrees. - incorrect
No, they are not adjacent.
No, they are not adjacent. - no response given
Score
0
Check the operation and the sum for these angles.