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Vertical, Revolution and Reflex Angles>
Vertical, Revolution and Reflex Angles 2Vertical, Revolution and Reflex Angles 2
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Question 1 of 4
1. Question
Find the value of `b`
- `b=` (35)`°`
Correct
Great Work!
Incorrect
Vertically opposite angles have equal values.Angle `35°` is vertically opposite to angle `b`
Since vertically opposite angles are equal, `/_ b=35°``/_ b=35°` -
Question 2 of 4
2. Question
Find the value of `a`
- `a=` (120)`°`
Hint
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Nice Job!
Incorrect
A Revolution is when angles meet on a point and have a sum of `360°.` Typically, these angles form a circle.Since the two angles add up to `220°,` subtract the known measure to their sum in order to solve for `a``a+100` `=` `220` `a+100` `-100` `=` `220` `-100` Subtract `100` from both sides `a` `=` `120°` `/_ a=120°` -
Question 3 of 4
3. Question
Find the value of `a`
- `a=` (55)`°`
Hint
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Excellent!
Incorrect
Vertically opposite angles have equal values.The angle `140°` is vertically opposite to the sum of angles `a` and `85°`Since opposite angles are equal, `a+85°` will have the same value as the angle opposite to it`a+85` `=` `140` `a+85` `-85` `=` `140` `-85` Subtract `85` from both sides `a` `=` `55°` `/_ a=55°` -
Question 4 of 4
4. Question
Find the value of `x`
- `x=` (270)`°`
Hint
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Exceptional!
Incorrect
A Revolution is when angles meet on a point and have a sum of `360°.` Typically, these angles form a circle.Since a revolution adds to `360°,` add the angle measures and set their sum to `360°` in order to solve for `x``x+90` `=` `360` `x+90` `-90` `=` `360` `-90` Subtract `90` from both sides `x` `=` `270°` `/_ x=270°`
Quizzes
- Complementary and Supplementary Angles 1
- Complementary and Supplementary Angles 2
- Complementary and Supplementary Angles 3
- Vertical, Revolution and Reflex Angles 1
- 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
- Congruent Triangles 1
- Congruent Triangles 2
- Deductive Geometry (Reasoning) 1
- Deductive Geometry (Reasoning) 2