Question

angle c is inscribed in circle 0
AB is a diameter of (b​

Answer 1

Answer:

angle c is inscribed in circle 0

AB is a diameter of (71)/2

Answer 2

Step-by-step explanation:

Here,

∠A= 71°

And, ∠C=90°(being angle made in semi-circle is a right angle)

Then,

∠A + ∠B + ∠C = 180°(sum of interior angles of a triangle is 180°)

or, 71° + ∠B + 90° = 180°

or, 161° + ∠B = 180°

or, ∠B = 180°-161°

i.e. ∠B = 19°