Years
>
Year 9>
Geometry>
Vertical, Revolution and Reflex Angles>
Vertical, Revolution and Reflex Angles 2Vertical, Revolution and Reflex Angles 2
Try VividMath Premium to unlock full access
Time limit: 0
Quiz summary
0 of 4 questions completed
Questions:
- 1
- 2
- 3
- 4
Information
–
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Loading...
- 1
- 2
- 3
- 4
- Answered
- Review
-
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
Help VideoCorrect
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
Help VideoCorrect
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
Help VideoCorrect
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