Question

ABCD is a trepazium with AB parallel to DC. If AB=10cm AD=BC=4cm and angle DAB= angleCBA=60° , calculate the length of CD

Answer 1

Step-by-step explanation:

From △ADP,

APAD=cos60∘

=> x4=12

=> x = 2

Therefore, CD = AB - 2x = 10 - 4 = 6 cm

Therefore answer is 6 cm