Question

Find the area of metal required to make the can illustrated alongside. Include the top and bottom in your answer. *​

Answer 1

Step-by-step explanation:

r=6cm, h=8cm

The curved surface area of a cylinder=2xrh

.....(formula)

=2× 3.14×6×8= 301.44cm

the total surface area of a cylinder= 2xr(r+h)

=2×3.14×6(6+8)

=2×3.14×6×14

=527.52cm

Answer 2

Answer

• The area of the metal required is 207.42 cm²

Exolanation

Given

• We are given a can of bese diameter 6 cm
• Height of the can is 8 cm

To Find

• Area of metal required to make the can

Solution

[Here the area of the metal required will be equal to the TSA of the can]

→ TSA(cylinder) = 2πr(h+r)

✭ Radius of the cylinder

→ Radius = Diameter/2

→ Radius = 6/2

→ Radius = 3 cm

✭ TSA of the cylinder

→ TSA(cylinder) = 2πr(h+r)

→ TSA = 2 × 22/7 × 3(8+3)

→ TSA = 2 × 22/7 × 3(11)

→ TSA = 2 × 22/7 × 33

→ TSA = 207.42 cm²

Therefore the required area of the metal to make the can is 207.42 cm²