Question

The volume of a cylinder is 448pie cucm and height 7cm. Find its lateral and total surface area. Plzz help note-( pie 22/7) didn't have symbol that's y

Answer 1

volume of cylinder = 448 π cm³
height of cylinders = 7 cm
radius of cylinder = r cm
since , volume of cylinder = πr²h
448π cm³= πr²×7
r ²= 448π / 7π
r²= 64 cm²
r =√64 = 8cm
lateral surface area = 2πrh
= 2×22/7×8×7 = 352cm²
total surface area = 2πr(r+h)
= 2×22/7×8(8+7)
= 2×22/7×8×15
= 5280/7 = 754.29 cm²(approx.)

Answer 2

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