Question

1. In Fig., lines AB and CD intersect each other at point O. If a: b = 4:5, find a, b, c and d​

Answer 1

Step-by-step explanation:

Given AB and CD intersect at O. if a:b = 4:5. find a, b, c, d.

• So there is a figure where in two rays AB and CD intersect at point O

• Now since AOB is a straight line a+b = 180 degree

• According to the question a:b = 4:5

• 4 + 5 = 9

• Now a = 180 × 4/9

• Or a = 80

• Also b = 180 × 5/9

• Or b = 100

• Now c = a and d = b (because they are vertically opposite angles)

• So we get a = 80, b = 100, c = 80 and d = 100

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