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ACT Math Videos 164 videos

ACT Math 1.1 Pre-Algebra
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Pre-Algebra Drill 1, Problem 1. Calculate 23 + 53(7 – 4).

ACT Math 1.1 Trigonometry
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ACT Math: Trigonometry Drill 1, Problem 1. What is the length of y?

ACT Math 1.2 Coordinate Geometry
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ACT Math: Coordinate Geometry Drill 1, Problem 2. Solve the inequality and determine which solution is shown on the number line.

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ACT Math 3.2 Plane Geometry 362 Views


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Description:

ACT Math: Plane Geometry Drill 3, Problem 2. Can you find the volume of this right circular cylinder?

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Transcript

00:02

For a good time solve this shmoopy question...

00:05

Find the volume of a right circular cylinder with a radius of 8 and a height of 12.

00:11

Here are the answers.

00:15

Okay we need the volume of a right circular cylinder

00:19

Volume is all the stuff inside. To help you remember

00:23

the formula is pi times radius squared times height

00:27

The question gives us the radius is 8 and the height

00:30

as 12. Plug those numbers into the formula as pie times radius 8 squared

00:35

which is

00:36

64 times the height which is 12 so 64 times 12 is 768

00:42

and don't forget the times pi in there.

00:45

For the answer is 768pi. Answer E.

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