Question

In the adjoining figure 10.21, lines DA, BE, CF intersectato. If AOB = 50°, COD = 60°, find 1, 2, 3 and 4 Fig. 10.21​

Answer 1

Answer:

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Answer 2

Answer:

1 = 70 °

2 = 50°

3 = 70°

4 = 60°

Step-by-step explanation:

angle COD = angle 4

(vertically opposite angles are equal)

angle 4 = 60°

angle AOF = angle 2

(vertically opposite anglesare equal)

angle 2 = 50°

Angle sum property

angle 2 + angle 3 + angle 4 = 180°

50° + angle 3 + 60° = 180°

angle 3 = 70°

angle 1 = angle 3 (vertically oppsiticlas are equal)

angle 1 = 70°