Question

A closed cylindrical tank of height 8 m and radius 3.5 m is to be made form a metal sheet. find the cost of the metal sheet required at rate of rs 130 per m^2 . plz give answer . important

Answer 1

hey there check the attachment...

Answer 2

The cost of the metal sheet required  is Rs.32890

Step-by-step explanation:

Height of closed cylindrical tan = 8 m

Radius of tank = 3.5 m

Total surface area of tank = $2 \pi r h +2 \pi r^2$

Total surface area of tank = $2 \times \frac{22}{7} \times 3.5 \times 8 + 2 \times \frac{22}{7} \times 3.5^2=253 m^2$

Area of metal used = 253 sq.m.

Cost of 1 sq.m. metal sheet = Rs.130

Cost of 253 sq.m. metal sheet = $253 \times 130 = Rs.32890$

Hence  The cost of the metal sheet required  is Rs.32890

#Learn more:

A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required?

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