Question

Angles θ and Φ are complementary, and θ = pi/12 Find the measure of Φ.

Answer 1

sum of complement angles = a right angle = π/2
so
measure of Φ = π/2 - π/12
measure of Φ = 6π/12 - π/12
measure of Φ = 5π/12

answer
5π/12

Answer 2

sum of complement angles = a right angle = π/2

so

measure of Φ = π/2 - π/12

measure of Φ = 5π/12 + π/12

measure of Φ = 6π/12

6π/12 = π/2

answer

π/2