Let’s solve each problem one by one. Remember:
complementary angles add up to 90 degrees. That means if you have two angles that form a right angle (like in these diagrams), their measures must total 90°.
We’ll use this rule for every problem:
> x + given angle = 90
> So, x = 90 - given angle
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Problem 1: Already solved as example → x = 60 ✔️
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Problem 2: Given angle is 25°
x = 90 - 25 =
65
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Problem 3: Given angle is 55°
x = 90 - 55 =
35
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Problem 4: Given angle is 15°
x = 90 - 15 =
75
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Problem 5: Given angle is 50°
x = 90 - 50 =
40
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Problem 6: Given angle is 63°
x = 90 - 63 =
27
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Problem 7: Given angle is 62°
x = 90 - 62 =
28
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Problem 8: Given angle is 45°
x = 90 - 45 =
45
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Problem 9: Given angle is 80°
x = 90 - 80 =
10
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All calculations checked and correct.
Final Answer:
2. x = 65
3. x = 35
4. x = 75
5. x = 40
6. x = 27
7. x = 28
8. x = 45
9. x = 10
Parent Tip: Review the logic above to help your child master the concept of complementary and supplementary worksheet.
