Question

If volume of cylinder is 900cm² with height of 20cm then diameter of cylinder is

Answer 1

Hello!

Before finding the diameter, we need to know the formula for the volume of cylinder. The volume of cylinder is found by using this formula: V = πr²h. In this formula, r is the radius and h is the height.

Since we have the height and volume, we need to find the radius, and then we can find the diameter.

900 = πr²(20) (divide both sides by 20)

45 = πr² (divide both sides by π)

45/π = r² (take the square root of both sides)

r ≈ 3.784 | The radius of the cylinder is equal to about 3.784 centimeters.

To find the diameter, we need to multiply the radius by 2 because half a diameter is equal to the radius.

3.784 × 2 = 7.568 centimeters | This can be rounded to about 7.57 centimeters.

Therefore, the diameter of the cylinder is equal to about 7.57 centimeters.