Question

27. In fig. below, value of (Zx + Zy) is
100°
B
C С
(a) 80°
(c) 1200
(6) 30°
(d) 60°​

Answer 1

Answer:

Two angles whose sum is 90° are called complementary angles.

(i) Complement of 55° = 90° − 55° = 35°

(ii) Complement of 16°=(90-16)°=74°

(iii) Complement of 90° = 90° − 90° = 0°

(iv)

2

3

of a right angle⇒(90×

2

3

)°=60°

Complement of

2

3

of a right angle=(90