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Solving Equations with Complementary/Supplementary Angles
By Shelly Ferner
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Last updated over 5 years ago
9 questions
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Question 4
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Question 7
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4 - Solve for x.
Question 5
5.
Question 6
6.
Question 7 - Solve for x.
You can
take the numbers out of the ( )
before you add them together.
Question 8
8.
Question 9
9.
Question 1: Solve for x.
These angles are
COMPLEMENTARY
. They add up to
90 degrees
. This means x + 18 + x = 90.
Don't forgot to "Combine Like Terms" (like this: 2x + 18 = 90), then solve!
x = 24 degrees
x = 36 degrees
x = 81 degrees
x = 122 degrees
Question 2: Solve for x.
x = 35 degrees
x = 48 degrees
x = 68 degrees
x = 71 degrees
Question 3: Solve for x.
x = 35 degrees
x = 42 degrees
x = 80 degrees
Question 5 - Solve for x.
These angles are
SUPPLEMENTARY
. They add up to
180 degrees
. This means x + 20 + x + 10 = 180.
Don't forgot to "Combine Like Terms" (like this: 2x + 30 = 180), then solve!
x = 40 degrees
x = 65 degrees
x = 75 degrees
x = 95 degrees
Question 6 - Solve for x.
You can
take them out of the ( )
before you add them together.
Like this: x + x - 50 = 180.
Don't forget to Combine Like Terms before you solve!
x = 60 degrees
x = 85 degrees
x = 100 degrees
x = 115 degrees
Question 8 - Solve for x.
You can
take the numbers out of the ( )
before you add them together.
x = 57 degrees
x = 63 degrees
x = 85 degrees
Question 9 - Optional
Bonus! Solve for x.
x = 36 degrees
x = 81 degrees
x = 45 degrees
x = 22 degrees
