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Plane Geometry Videos 30 videos

ACT Math 1.5 Plane Geometry
297 Views

ACT Math: Plane Geometry Drill 1, Problem 5. If two polygons have the same shape and size, they are what?

ACT Math 3.5 Plane Geometry
394 Views

ACT Math: Plane Geometry Drill 3, Problem 5. How long would it take for the wheel to make two rotations?

ACT Math 4.3 Plane Geometry
361 Views

ACT Math: Plane Geometry Drill 4, Problem 3. What is the measure of each angle in the figure?

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ACT Math 3.1 Plane Geometry 2559 Views


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Description:

ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?

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Transcript

00:02

And here's your shmoop du jour...

00:04

What is the area of the trapezoid shape below?

00:08

Here are the potential answers...

00:12

Okay, it's yet another formula trivia contest.

00:15

To help you remember, here's a trap and here's a zoid.

00:18

And the formula for the area of a trapezoid is

00:22

1/2 times the height times the quantity of base1

00:26

plus base 2 . Uhh these bases. Base 1 is 6

00:30

base 2 is 10 the the height is 5. Plugging in the numbers we get 1/2 times 5 times the

00:36

quantity 6 plus 10

00:37

that's 5 over 2 times 16 or 5 times 8 or

00:42

40. Answer B. As in "Bases loaded."

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