A pie chart showing the allocation of periods for lessons in a school shows that Biology has a sectoral angle of 50° while only 5 hours is allocated to it. Find:(a) The sectoral angle of Chemistry having 7 hours. (b) The hours allocated to mathematics if the sectoral angle is 90°.(c) The sectoral angle of Commerce that has 12 hours.?
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Asked by Lapkang Hygenus on 1st September, 2021
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