Question

Calculate:

1. ∠CDB,
2. ∠ABC,
3. ∠ACB.

Answer 1

Here,

∠CDB = ∠BAC = 49°

∠ABC =∠ADC = 43°

(Angle subtend by the same chord on the circle are equal)

By angle – sum property of a triangle,

∠ACB = 180° – 49° – 43° = 88°