find the slant height of a top with a hemisphere on top
r=1.25
h with hemisphere=5
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ANSWER:3.3M2
Step-by-step explanation:
Let r be the common radius of the cylinder and hemisphere and h be the height of the hollow cylinder.
Then r=30cm;h=1.45m=145cm
Total surface are of the bird-bath = curved surface area of the cylinder + curved surface area of the hemisphere
=2πrh+2πr2
=2π(h+r)
=2×722×30(145+30)cm2
=3.3m2
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