Question

find the value of x if (x+20°) and (5x+ 40°) are complementary angle.​

Answer 1

Answer:

» (x + 20⁰) + (5x + 40⁰) = 90⁰

» 6x = 30⁰

» x = 5⁰

Therefore, the angles are 25⁰ and 65⁰.

Answer 2

Answer:

(x+20°)+(5x+40°)=90°

x+20°+5x+40°=90°

x+5x+20°+40°=90°

6x+60°=90°

6x=90°-60°

6x=30°

x=30°/6=5

therefore, x=5

Hope it helps you!!!!!!