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The curved suface area of a cone is 2200 sq.cm and its slant height is 50 cm.Find the total surface area of cone .(π =22/7)
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58
We know that,
Curved Surface Area of cone = pi× r× L
=> 22 /7 × r × 50 = 2200
=> r = 2200 × 7 / 50 × 22
=> r = 2 × 7
=> r = 14 cm
Total Surface Area = CSA + Area of base
= 2200 + ( 22 × 14 × 14 / 7)
= 2200 + (22× 2 × 14)
= 2200 + (44×14)
= 2200 + 616
= 2816 cm^2
Curved Surface Area of cone = pi× r× L
=> 22 /7 × r × 50 = 2200
=> r = 2200 × 7 / 50 × 22
=> r = 2 × 7
=> r = 14 cm
Total Surface Area = CSA + Area of base
= 2200 + ( 22 × 14 × 14 / 7)
= 2200 + (22× 2 × 14)
= 2200 + (44×14)
= 2200 + 616
= 2816 cm^2
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