Subject :IMO Class : Class 7
An angle exceeds twice its supplement by 30 degree. Find the angle.
Ans 1:
Class : Class 7
Let the angle be x
It's supplement=(180-x)°
A/q
(x+30)°=2×(180-x)°
x+30°=360°-2x
x+2x=(360-30)°
3x=330°
x=330°÷3
x=110°
The angle=x=330°