Question

Q. 9) In the given fig. If 21 = 50°, find 42, 43, and a
2
1
A​

Answer 1

Answer:

angle 3 = 50, angle 4 = 130 , angle 2 = 130

Step-by-step explanation:

angle 3 = 50 ( vertically opposite angle) (1)

angle 4 + angle 3 = 180 ( liners pair )

angle 4 = 180 - angle 3

angle 4 = 180 - 50 (1 angle 3 = 50 )

angle 4 = 130

angle 2 = 130 ( vertically opposite angle of angle 2)

Answer 2

Answer:

GIVEN = Angle 1 = 50°

Angle 3 = 50°( Vertically opposite angle )

Angle 3+ Angle 2 = 180°

50° + Angle 2 = 180°

Angle 2 = 180°- 50°

Angle 2 = 30°

Angle 2 = Angle 4 ( Vertically opposite angle )

Therefore, Angle 4 = 30°

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