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ACT Mathematics Videos 164 videos
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
ACT Math: Pre-Algebra Drill 1.2. What proportion of Jenna's day is spent Wii-swimming?
ACT Math 1.4 Plane Geometry 451 Views
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ACT Math: Plane Geometry Drill 1, Problem 4. What angle is supplementary to Angle 10?
Transcript
- 00:02
We are getting shmoopy with it.
- 00:04
In the following diagram lines A&B are parallel
- 00:07
line C is perpendicular. Angle 4 measure the 105 degrees
- 00:11
what angle is supplementary to angle 10?
- 00:15
Alright, here are the potential answers...
Full Transcript
- 00:19
Alright, really just basic vocab testing happening here.
- 00:23
What does supplementary mean? It's not like a vitamin.
- 00:27
It just means that when two angles supplement one another they create an
- 00:31
angle of 180 degrees.
- 00:32
Like this...otherwise known as a line. So what angle
- 00:36
is located next to angle 10 that creates a straight line?
- 00:40
Well both angles 9 and 14, but 9 isn't an option so our answer is
- 00:45
angle 14. There we go. So boom! The answer is B.
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