Question

S(1 -1/12) = 87.12 m2

Pls solve it
Its very urgent

Answer 1

Answer:

Given : radius=2.1cm and height=4.5cm

Let the actual area of steel used be x m

2

Since

12

1

of the steel was wasted in making the tank.

Area of the steel used in tank = x−

12

1

x

⇒

12

11

x

Area of the tank : 87.12 cm

2

Now

12

11

x = 87.12 cm

2

⇒x=

11

87.12×12

⇒95.04m

2

The amount of steel used is 95.04 m

2