The area of the base of a right circular cylinder is 15400cm2 and its volume is 92400cm3. Find the area of the curved surface. pls explain step by step
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Answer:
2640 cm²
Step-by-step explanation:
Area of base = πr²
15400 = 22/7 × r²
r² = 15400 × 7/ 22
r² = 4900
r =√4900
r = 70cm
V = πr²h
92400 = 22/7 × 4900 × h
92400 = 22×700 × h
92400 = 15400h
h = 92400/15400
h = 6cm
CSA = 2πrh
CSA = 2 × 22/7 × 70 × 6
CSA = 44 × 10 × 6
CSA = 2640 cm² -------------Ans.
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