find the curved surface area total surface area and volume of cone whose height is 28 cm and radius of base is 21 CM
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Answers
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Answer:
heights of surface area +radius of base
28+21 =49
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Answer:
curved surface area of cone=528cm²
total surface area of cone=3234cm²
volume of cone=12936cm²
Step-by-step explanation:
GIVEN
HEIGHT OF CONE (H)=28cm
RADIUS OF CONE(R)=21cm
curved surface area of cone =πrl=22/7×21×28=528cm²
total surface area=πr(r+l)=22/7×21(21+28)=3234cm²
volume of cone=1/3πr²h=1/3×22/7×21×21×28=12936cm²
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