SSC CGL 12 Jun 2019 Shift 1 Paper

∠CAD = ?
AB ∥ CD (∵ ABCD is a trapezium)
∠ACB = 90°
∠ABC = 180 - 28 - 90
∠ABC = 62
∠ADC = 180 - ∠ABC
= 180 - 62
= 118
∠BAC = ∠ACD (AB ∥ CD)
∠ACD = 28
∠CAD = 180 - 118 - 28
= 180 - 146
∠CAD = 34°