Question

if(x+ 5) and (2x + 25) are complementary, then x =
a) 10°
b) 30°
c) 20
d) 40​

Answer 1

Answer:

(c) 20°

Step-by-step explanation:

x + 5 + 2x + 25 = 90°    [Complementary means the sum of angles is 90°]

3x + 30 = 90°

3x = 60°

x = 20°