 Let us say we wanted to find out volume of this ball. This seems like a cricket ball So we must know the radius of this ball in order to calculate the volume of this ball Let us say the radius of this ball is 5 centimeter and I'll show you in the diagram how the radius looks like and we should be able to calculate the volume of the ball For reference volume of a spherical shape like this cricket ball Volume of a sphere is given by 4 divided by 3 pi r cubed Let me just box it with nice green box in order to highlight this As you can see pi and 4 by 3 are constants and we only need to know the radius of a sphere in order to get the Volume of it. So what is the radius of a sphere? Let me just quickly show you how the radius looks like so if if we have a sphere like this The radius is the distance of any point on the sphere or on the surface of the sphere from the center of the sphere So what will be the volume of the cricket ball in this case? Let's calculate because I know the radius I can simply write volume is equal to 4 by 3 times Let's take 22 by 7 for the value of pi Times cube of r cube of r is basically cube of 5 centimeter because r is 5 centimeters and The volume will be 4 times 22 times 5 times 5 times 5 so basically cube of 5 is Multiplying 5 by itself 3 times So this is the numerator divided by in the denominator We have 3 and 7 Which are being multiplied and of course we shouldn't forget writing the unit of the volume here Which is centimeters cube remember because our radius isn't centimeter the volume will be in centimeters cube Now if we compute this we get V is equal to 11,000 a nice looking number in the numerator and 21 in the denominator centimeter cube Let me quickly use the calculator to get this value here and that comes out to be 523.809 centimeter cube or I can say that the volume of this sphere is 524 centimeter cube approximately Which is also 524 milliliters or ml Just for your reference remember 1 centimeter cube is equal to 1 milliliter and Such thousand centimeter cubes make up thousand ml or 1 liter again just for reference just for reference again What is 1 centimeter cube 1 centimeter cube is a volume of cube with sides 1 centimeter Approximately, this is how the cube will look like and if you pour the water in this particular cube You will get 1 ml of water. So this is how you can visualize 1 ml of water So 524 ml or 524 centimeter cubes is the way is basically the volume of this cricket ball It's pretty interesting to think like that