If ABCD is an isosceles trapezium, ∠C is equal to _________.
∠B of an isosceles trapezium ABCD is 82∘.
Find ∠A, ∠C and ∠D.
ABCD is an isosceles trapezium with side BC is parallel to AD. If ∠A=120∘ then the measure of ∠B, ∠C and ∠D respectively are _________ .