Question

Solve for total surface area and curved surface area of a cylinder of which height and radius both is 49cm.​

Answer 1

Step-by-step explanation:

Curved surface area = 2 × 22/7 × 49 × 49 cm² = 15092 cm²

Total surface area = 2 × 22/7 × 49 (49 + 49) cm² = 308 (98) cm² = 30184 cm²

Answer 2

☆ Solution ☆

Given :-

• Radius of the cylinder = 49 cm

• Height of cylinder = 49 cm

To Find :-

• Total surface area of cylinder

• Total curved area of cylinder

Step-by-Step-Explaination :-

Let the radius of cylinder be r

and height of cylinder be h

Therefore,

1) Total surface area = 2πr ( r + h )

Total surface area = 2 × 22/7 × 49 ( 49 + 49 )

Total surface area = 2 × 22/7 × 49 ( 98 )

Total surface area = 44/7 × 49 × 98

Total surface area = 44 × 7 × 98

Total surface area = 30184 cm²

Now,

2) Curved surface area = 2πrh

Curved surface area = 2 × 22/7 × 49 × 49

Curved surface area = 2 × 7 × 49

Curved surface area = 15092 cm²

Hence Solved !