Question

find CSA of cylinder whose radius is 14 and height is 8 ​

Answer 1

Given :-

• A cylinder whose radius is 14m and height is 8 m

To find :-

• Curved surface area of cylinder

Solution :-

As we know that

→ Curved surface area of cylinder = 2πrh

Where " r " is radius and " h " is height of a cylinder.

According to the given condition

• Radius of a cylinder = 14m

• Height of a cylinder = 8m

→ Curved surface area of cylinder

→ 2πrh

Put the values

→ 2 × 22/7 × 14 × 8

→ 2 × 22 × 2 × 8

→ 44 × 16

→ 704 m²

Hence,

• Curved surface area of a cylinder is 704m²

Extra Information :-

• Volume of cylinder = πr²h
• T.S.A of cylinder = 2πrh + 2πr²
• Volume of cone = ⅓ πr²h
• C.S.A of cone = πrl
• T.S.A of cone = πrl + πr²
• Volume of cuboid = l × b × h
• C.S.A of cuboid = 2(l + b)h
• T.S.A of cuboid = 2(lb + bh + lh)
• C.S.A of cube = 4a²
• T.S.A of cube = 6a²
• Volume of cube = a³
• Volume of sphere = 4/3πr³
• Surface area of sphere = 4πr²
• Volume of hemisphere = ⅔ πr³
• C.S.A of hemisphere = 2πr²
• T.S.A of hemisphere = 3πr²

Answer 2

Step-by-step explanation:

radius=14cm

height=8cm

CSA of a cylinder=2πrh

=2×22/7×14×8

=2×22×2×8

=704