Question

find the volume curved surface area and total surface area of each of the cylinders whose dimensions are radius of the base=5.6 and height=1. 25

Answer 1

hey user!!

you are not given unit
so radius of cylinder = 5.6 sq unit
also,, height = 1.25 sq unit

now csa of cylinder = 2×pie×radius×height
= 2× 22÷7× 56÷10×125÷100
= 44 sq unit square

now tsa = 2×pie×radius ×radius +height
= 2×22÷7×5.6×5.6+1.25
= 241.12 sq unit square.

now volume of cylinder = pie ×radius ×radius×height
= 22÷7×5.6×5.6×1.25 = 123.2 sq unit cube..

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Answer 2

volume of cylinder =11.2 and total surface area = 241.12