a toy is in the form of a cone mounted on a hemisphere of radius 3.5 CM the total height of a toy is 15.5 cm find the total surface area of the toy
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slant height=r2+h2
l2=(3.5)2+(15.5)2
L2=13.25+240.25
L2=253.50
L2=256
therefore,
l=16
then t.s.a of cone=πr(l+r)
=22/7x3.5(16+3.5)
=22x0.5x19.5
=11x19.5
=214.5cm2
l2=(3.5)2+(15.5)2
L2=13.25+240.25
L2=253.50
L2=256
therefore,
l=16
then t.s.a of cone=πr(l+r)
=22/7x3.5(16+3.5)
=22x0.5x19.5
=11x19.5
=214.5cm2
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