The base area of cone is 616 sq.cm and its height is 48.cm. find its lateral
surface area
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Answer:
AREA OF CONE = 616
===> πR² = 616
==> R² = 616×7/22
==> R² = 28×7
==> R² = 196
==> R = √196 ==> 14 CM
(SLANT HEIGHT)² = (H)²+(R)²
==> (L)² = (48)²+(14)²
==> (L)² = 2304+196
==> L = √2500
==> L = 50
LATERAL OR CURVED SURFACE AREA = πRL
===> 22/7×14×50
==> 22×2×50 ==> 44×50 ==> 2200 CM²
ANSWER = 2200 CM²
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