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Complementary and Supplementary Angles>
Complementary and Supplementary Angles 1Complementary and Supplementary Angles 1
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Question 1 of 4
1. Question
Find the value of `x`
- `x=` (60)`°`
Hint
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Complementary angles are when two angles have a sum of `90°.` Typically, these angles form a right angle.Since complementary angles add to `90°,` add the angle measures and set their sum to `90°` in order to solve for `x``x+30` `=` `90` `x+30` `-30` `=` `90` `-30` Subtract `30` from both sides `x` `=` `60°` `/_ x=60°` -
Question 2 of 4
2. Question
Find the value of `x`
- `x=` (40)`°`
Hint
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Keep Going!
Incorrect
Complementary angles are when two angles have a sum of `90°.` Typically, these angles form a right angle.Since complementary angles add to `90°,` add the angle measures and set their sum to `90°` in order to solve for `x``30+x+20` `=` `90` `x+50` `=` `90` Simplify `x+50` `-50` `=` `90` `-50` Subtract `50` from both sides `x` `=` `40°` `/_ x=40°` -
Question 3 of 4
3. Question
Find the value of `y`
- `y=` (45)`°`
Hint
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Excellent!
Incorrect
Complementary angles are when two angles have a sum of `90°.` Typically, these angles form a right angle.Since complementary angles add to `90°,` add the angle measures and set their sum to `90°` in order to solve for `y``y+y` `=` `90` `2y` `=` `90` Simplify `2y``divide2` `=` `90``divide2` Divide both sides by `2` `y` `=` `45°` `/_ y=45°` -
Question 4 of 4
4. Question
Find the value of `a`
- `a=` (50)`°`
Hint
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Well Done!
Incorrect
Supplementary angles are when two angles have a sum of `180°.` Typically, these angles lie on a straight line.Since supplementary angles add to `180°,` add the angle measures and set their sum to `180°.` Then, solve for `a`.`a+130` `=` `180` `a+130` `-130` `=` `180` `-130` Subtract `130` from both sides `a` `=` `50°` `/_ a=50°`
Quizzes
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- Complementary and Supplementary Angles 2
- Complementary and Supplementary Angles 3
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- Vertical, Revolution and Reflex Angles 2
- Alternate, Corresponding and Co-Interior Angles 1
- Alternate, Corresponding and Co-Interior Angles 2
- Alternate, Corresponding and Co-Interior Angles 3
- Angles and Parallel Lines
- Triangle Geometry 1
- Triangle Geometry 2
- Triangle Geometry 3
- Quadrilateral Geometry 1
- Quadrilateral Geometry 2