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The tent of a circus is conical in shape. The radius of its base is 5 metres. If the height of the tent is 12 metres then how much canvas will be needed for the tent?1). 204 \(\frac{2}{7}\) sqm.2). 188 \(\frac{4}{7}\) sqm.3). 930 sqm.4). 503.34 sqm. |
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Answer» Radius of the BASE = 5m Height = 12m L2 = r2 + h2 ⇒ l2 = 52 + 122 = 25 + 144 = 169 ⇒ l = 13m Area = π r l = 22/7 × 5 × 13 = 1430/7 = 2042/7 SQ m |
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