What is vertical angles - Definition and Meaning
Vertical Angles :
Vertical Angles are the congruent angles that are opposite to each other which is formed by the intersection of two lines.
Formula :
A° = C°
B° = D°
Example :
In a parallelogram, if the angle a is given as 40 degree, then find the other three angles.
Given,
Angle A = 40 deg
To Find,
Vertical Angle B, C, D
Solution:
Step 1:
Angle A = Angle C
Angle A is given as 40 degree
So, angle C = 40
Step 2:
Angle A = 40
Now, let us find the value of angle B
B = 180 - A
= 180 - 40
B = 140
Step 3:
Finally, let us calculate the value of angle D.
Angle B = Angle D
B = 140
Therefore, D = 140
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