Find the measure of the supplementary angle of the following angles :
(i) 45∘
(ii) 57∘ [2 MARKS]
Concept: 0.5 Mark each
Application: 0.5 Mark each
We know that the measure of the supplementary angle of x∘ is equal to (180∘–x∘).
(i) Measure of the supplementary angle of 45∘
=180∘–45∘=135∘
(ii) Measure of the supplementary angle of 57∘
=180∘–57∘=123∘