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Plane Geometry Videos 23 videos
ACT Math: Plane Geometry Drill 1, Problem 4. What angle is supplementary to Angle 10?
ACT Math: Plane Geometry Drill 1, Problem 5. If two polygons have the same shape and size, they are what?
Geometric Planes are great and all, but you don't really want to book a flight to Tahiti on one. They're aerodynamic, sure, but good luck finding a...
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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