Let’s solve each problem one by one. Remember:
supplementary angles add up to 180°. So if you know one angle, subtract it from 180° to find the other.
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Problem 1:
Given angle = 60°
A = 180° - 60° =
120°
Problem 2:
Given angle = 150°
A = 180° - 150° =
30°
Problem 3:
Given angle = 141°
A = 180° - 141° =
39°
Problem 4:
Given angle = 72°
A = 180° - 72° =
108°
Problem 5:
Given angle = 153°
A = 180° - 153° =
27°
Problem 6:
Given angle = 45°
A = 180° - 45° =
135°
Problem 7:
Given angle = 50°
A = 180° - 50° =
130°
Problem 8:
Given angle = 100°
A = 180° - 100° =
80°
Problem 9:
Given angle = 158°
A = 180° - 158° =
22°
Problem 10:
Given angle = 98°
A = 180° - 98° =
82°
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Final Answer:
1) 120°
2) 30°
3) 39°
4) 108°
5) 27°
6) 135°
7) 130°
8) 80°
9) 22°
10) 82°
Parent Tip: Review the logic above to help your child master the concept of supplementary angle worksheet.
