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Plane Geometry Videos 30 videos
ACT Math: Plane Geometry Drill 1, Problem 5. If two polygons have the same shape and size, they are what?
ACT Math: Plane Geometry Drill 3, Problem 5. How long would it take for the wheel to make two rotations?
ACT Math: Plane Geometry Drill 4, Problem 3. What is the measure of each angle in the figure?
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?
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.
Full Transcript
- 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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