A toy is in the form of a cone mounted hemisphere both are of same radius. The distance of the conical portion is 6cm and it's height is 4cm. Determine the surface area of the solid. (take π = 3.14)
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Answer:
103.71sq cm
Step-by-step explanation:
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Answer:
s.a of solid = 103.62 cm²
Step-by-step explanation:
surface area of solid = csa of cone + csa of hemisphere
= πrl + 2πr²
=πr [l+2r]
=3.14 * 3 [√(3²+4²) +2*3]. ( l=√(h²+r²)]
= 9.42 [√(9+16) + 6]
= 9.42 [ √25 +6]
= 9.42 [ 5+6]
= 9.42 (11)
= 103.62 cm²
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