A conical tent made up of canvas having bsse diameter 10cm and height is 12cm find area of canvas used
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Area of canvas = length × breadth
= 12×10
= 120 cm^2
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Answer:
204.2 cm2
Step-by-step explanation:
diameter = 10 cm
hence, radius = 10 divide by 2 = 5 cm
height = 12 cm
l2 = r2 + h2 where l = length, r = radius and h= height and 2 = square
l2 = (5)2 + (12)2
l2 = 25 + 144
l2 = 169
squareing both sides
hence, l = 13 cm
now, curved surface area of cone = 22 by 7 *r*l
where, r = radius and l = length
therefore, 22 by 7 *5*13 = 204.2 cm2
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