ABCD is a trapezium in which AB II CD. If angle ADC = twice angle ABC, AD = a cm and CD = b cm, then find the length of AB.

ABCD is a trapezium in which AB II CD. If angle ADC = twice angle ABC,

1.	ABCD is a trapezium in which AB II CD. If angle ADC = twice angle ABC, AD = a cm and CD = b cm, then find the length of AB.
Answer» The length of AB is (a + b) cm. A trapeziumis a quadrilateral in which one pair of opposite sides are parallel