Question

Find the supplement of each of the following angles:

(i) 42°

(ii) 90°

(iii) 124°

(iv) 3/5 of a right angle

Answer 1

(i) We know that the supplement of 42° can be written as

42° = 180° – 42° = 138°

(ii) We know that the supplement of 90° can be written as

90° = 180° – 90° = 90°

(iii) We know that the supplement of 124° can be written as

124° = 180° – 124° = 56°

(iv) We know that 3/5 of a right angle can be written as 3/5 × 90° = 54°

54° = 180° – 54° = 126°