Question:
What is the central angle of the sector (in the above pie chart) representing hormones enzymes and other proteins.
(a) 120o
(b) 144o
(c) 156o
(d) 176o
Solution:
(b) 144o
Distribution of protein in the skin = 1/10
Distribution of protein in the bones = 1/6
Distribution of protein in the Muscles = 1/3
Central angle of the sector representing skin, muscles and bones,
= 1/10 + 1/6 + 1/3
= (3 + 5 + 10)/30
= 18/30 × 360o
= 216o
Then,
Central angle of the sector representing hormones enzymes and other proteins,
= 360o – 216o
= 144o
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