Hey guys !! how r u doing ?? hope ur all fine !! here's ur question :
A toy is in the form of a cone mounted on a hemisphere. The diameter of the base and the height of the cone are 6 cm and 4 cm respectively. Determine the surface area of the toy. ( take pi=3.14)
plz solve this !! Thanks in advance! !
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Answered by
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Given, height of cone = 4 cm and diameter = 6 cm. Radius = 3 cm.
Slant height(l) = √r² + h²
= √3² + 4²
= 5 cm.
∴ Surface area of cone = πrl
= 3.14 * 3 * 5
= 47.1 cm²
∴ Surface area of hemisphere = 2πr²
= 2 * 3.14 * (3)²
= 56.52 cm²
Total surface area of toy = Area of cone + Area of hemisphere
= 47.1 + 56.52
= 103.62 cm²
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