a bird bath is in the shape of a hemispherical depression at one end the height of the cylinder is 1.45m and its radius is 30 cm find the total surface area of the bird bath
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Answer:
3.3cm^2
Step-by-step explanation:
let h be height of cylinder
r be radius of cylinder and hemisphere
TSA of cone=CSA of cylinder+CSA of hemisphere
=2πrh+2πr^2h
=2πr(h+r)
=2×22/7×30(145+30)
=33000cm^2
=3.3cm^2
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