Question

In the given figure ABand CD
intersect at o find
find y,when x=40
find x , when y=60
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Answer 1

Hey where is the figure ?

Answer 2

( a ) ◆◆ find y , when x = 40° ◆◆

◆◆ ==> 2y + x = 180° ◆◆

◆◆ ==> 2y + 40° = 180° ◆◆

◆◆ ==> 2y = 180° - 40° ◆◆

◆◆ ==> 2y = 140° ◆◆

◆◆ ==> y = 140/2 ◆◆

◆◆ ==> y = 70° ◆◆

( b ) ◆◆ find x , when y = 60° ◆◆

◆◆ ==> 2y + x = 180° ◆◆

◆◆ ==> 2 (60°) + x = 180° ◆◆

◆◆ ==> 120 + x = 180° ◆◆

◆◆ ==> x = 180° - 120° ◆◆

◆◆ ==> x = 60° ◆◆