Find the volume, curved surface area and total surface area of each of

1.	Find the volume, curved surface area and total surface area of each of the cylinders whose dimensions are Radius of the base = 5.6m and height = 1.25 m.
Answer» We know that volume of the cylinder = πr²h Here r = 5.6m h = 1.25m V = 22/7 × 5.6 × 5.6 × 1.25 V = 123.2 m³ Also we know that curved surface area of cylinder = 2πrh Curved surface area = 2 × 22/7 × 5.6 × 1.25 Curved surface area = 44 m² We know that total surface area of cylinder = 2πr(r + h) Total surface area = 2 × 22/7 × 5.6 (5.6 + 1.25) Total surface area = 241.12 m²

Find the volume, curved surface area and total surface area of each of the cylinders whose dimensions are Radius of the base = 5.6m and height = 1.25 m.

Answer»

We know that volume of the cylinder = πr²h

Here r = 5.6m h = 1.25m

V = 22/7 × 5.6 × 5.6 × 1.25

V = 123.2 m³

Also we know that curved surface area of cylinder = 2πrh

Curved surface area = 2 × 22/7 × 5.6 × 1.25

Curved surface area = 44 m²

We know that total surface area of cylinder = 2πr(r + h)

Total surface area = 2 × 22/7 × 5.6 (5.6 + 1.25)

Total surface area = 241.12 m²