Question

Calculate the size of θ in the given diagram ( see image).
O is the center of the circle.​

Answer 1

90-48=42 grades because 48 and 42 are complimentary angles (add up to 90 grades).

Answer 2

∅ = 42°

Explanation:

90 - 48 = 42° because 48 and 42 are complimentary angles (add up to 90°)

because the radii lines form an isosceles triangle, ∠∅ also = 42°