The circumference of the base of a cone is 88cm, slant height is 20 cm. find the LSA
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Answer:
880 cm
Step-by-step explanation:
circumference of the base of a cone is a circle.
circumference of circle , C = 2πr
C = 88 cm
Slant height, l = 20 cm
C = 2πr
88 = 2*22*r/7
88 = 44r/7
r = 14 cm
LSA of cone = πrl
= 22 * 14 * 20 / 7
= 880 cm
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