Question

Water is filled in a right cylindrical tank with base radius 14cm

Answer 1

Step-by-step explanation:

csa of cylinder=2πrh

=2×22÷7×14×h

=88×h.

right cylinder height is 90

=88×90=7920cm^2

Answer 2

The radius of the ball is 10.5 cm³.

Step-by-step explanation:

The correct question is:

Water is filled in a right cylindrical tank with base radius 14 cm, such that water  level is 3 cm below the top. When an iron ball is dropped in the tank, 3003 cm of  water flows out. Find the radius of the ball.​

Given data:

Radius of water tank = 14 cm

water level is 3 cm below the top.

When iron ball is dropped it water 3003 cm³ of  water flows out.

Volume of empty tank = $\pi r^{2} h$

Volume of the ball = $\pi r^{2} h+\text{Volume of water came out}$

                               $=\frac{22}{7} \times 14^{2} \times 3+3003$

                                = 1848 + 3003

Volume of the ball  = 4851 cm³

Volume of sphere = $\frac{4}{3} \pi r^{3}$

$4851=\frac{4}{3} \times \frac{22}{7} \times r^{3}$

$r^{3}=\frac{4851 \times 3 \times 7}{22 \times 4}$

$r^{3}=1157.625$

Taking cube root on both sides.

r = 10.5 cm

The radius of the ball is 10.5 cm³.

To learn more...

1. Radius of a sphere is 14 cm. find the surface area of the sphere?

https://brainly.in/question/6970488?source=aid18242768

2.  Water is filled in a right cylindrical tank with base radius 14cm , such that water level is 3 cm below the top. when an iron ball is dropped in the tank,3003 cm cube of water flows out. Find the radius of the ball.​

https://brainly.in/question/14592813