A right cylinder has a diameter of 40 mm and a height of 30 mm. What is the volume of the cylinder?
A. 12,000 mm3
B. 150,720 mm3
C. 1256 mm3
D. 37,680 mm3

Question

A right cylinder has a diameter of 40 mm and a height of 30 mm. What is the volume of the cylinder?
	A.	12,000 mm3
	B.	150,720 mm3
	C.	1256 mm3
	D.	37,680 mm3

austine736 · Answer

@cutegirl1000 Can you help me with this question?

mathstudent55 · Answer

Do you know the formula for the volume of a cylinder?

mathstudent55 · Answer

$\Large V_{cylider} = \pi r^2 h$

mathstudent55 · Answer

r is the radius of the base.
You were given the diameter, so first find the radius by dividing the diameter by 2.
Then square the radius to get r^2. Just multiply the radius by itself.
Then multiply by pi. You can use 3.14 for pi.
Then multiply by the height, 30.
What do you get?

austine736 · Answer

I'm so confused, can you take me through step by step?

mathstudent55 · Answer

I just did above.
Read my last response, and do one step at a time.

mathstudent55 · Answer

r is the radius of the base. You were given the diameter, so first find the radius by dividing the diameter by 2.
What is the radius?

austine736 · Answer

150796.4474

mathstudent55 · Answer

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