Information
You have already completed the quiz before. Hence you can not start it again.
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Loading...
-
Question 1 of 4
Incorrect
Loaded: 0%
Progress: 0%
0:00
Vertically opposite angles have equal values.
Angle 145° is vertically opposite to angle x
Since vertically opposite angles are equal, ∠ x=145°
-
Question 2 of 4
Find the value of y and z
Incorrect
Loaded: 0%
Progress: 0%
0:00
Supplementary angles are when two angles have a sum of 180°. Typically, these angles lie on a straight line.
Vertically opposite angles have equal values.
To find y, solve for the supplementary angle of 110°. Since y and z are vertical angles, they are equal.
First, we can see from the diagram that the angle 110° and the angle y lie on a straight line. Therefore, they are supplementary angles
Since supplementary angles add to 180°, add the angle measures and set their sum to 180°. Then, solve for the value of c.
| y+110 |
= |
180 |
| y+110 −110 |
= |
180 −110 |
Subtract 110 from both sides |
| y |
= |
70° |
Finally, we can see that angle y is vertically opposite to angle z
Since vertically opposite angles are equal, ∠ z=70°
-
Question 3 of 4
Incorrect
Vertically opposite angles have equal values.
Angle 60° is vertically opposite to angle b
Since vertically opposite angles are equal, ∠ b=60°
-
Question 4 of 4
Incorrect
Loaded: 0%
Progress: 0%
0:00
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 a
| a+105+140 |
= |
360 |
| a+245 |
= |
360 |
Simplify |
| a+245 −245 |
= |
360 −245 |
Subtract 245 from both sides |
| a |
= |
115° |
