EXERCISE 12.5Find the values of x and y in the figures given below30Â

1.	EXERCISE 12.5Find the values of x and y in the figures given below30Â°0yo110Jx85
Answer» i)when opposite are equal then opposite angle are equal.So, x = yx + x + 30° = 180°2x = 150°x = 150/2 = 75°x = 75°So, y = 75° also. ii) Given quadrilateral is cyclic so opposite angle have sum 180°. x + 110° = 180°x = 70° y + 85° = 180°y = 180° - 85°y = 95°

EXERCISE 12.5Find the values of x and y in the figures given below30Â°0yo110Jx85

Answer»

i)when opposite are equal then opposite angle are equal.So, x = yx + x + 30° = 180°2x = 150°x = 150/2 = 75°x = 75°So, y = 75° also.

ii) Given quadrilateral is cyclic so opposite angle have sum 180°.

x + 110° = 180°x = 70°

y + 85° = 180°y = 180° - 85°y = 95°