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 = 7cm and height = 50cm.
Answer» We know that volume of the cylinder = πr²h Here r = 7cm h = 50cm V = 22/7 × 7 × 7 × 50 V = 22 × 7 × 50 V = 7700 cm³ Also we know that curved surface area of cylinder = 2πrh Curved surface area = 2 × 22/7 × 7 × 50 Curved surface area = 2200 cm² We know that total surface area of cylinder = 2πr(r + h) Total surface area = 2 × 22/7 × 7 (7 + 50) Total surface area = 2580 cm²

Find the volume, curved surface area and total surface area of each of the cylinders whose dimensions are Radius of the base = 7cm and height = 50cm.

Answer»

We know that volume of the cylinder = πr²h

Here r = 7cm h = 50cm

V = 22/7 × 7 × 7 × 50

V = 22 × 7 × 50

V = 7700 cm³

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

Curved surface area = 2 × 22/7 × 7 × 50

Curved surface area = 2200 cm²

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

Total surface area = 2 × 22/7 × 7 (7 + 50)

Total surface area = 2580 cm²