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Angle Measures Videos 13 videos

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SAT Math 3.2 Geometry and Measurement
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SAT Math 3.2 Geometry and Measurement

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SAT Math 6.4 Geometry and Measurement

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ACT Math 1.3 Plane Geometry 605 Views


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Description:

ACT Math: Plane Geometry Drill 1, Problem 3. What does Angle 15 measure in the given diagram?

Language:
English Language

Transcript

00:02

We are getting shmoopy with it.

00:04

In the following diagram lines A&B are parallel Plan C is perpendicular angle

00:09

four measures the 105 degrees what his angle 15 measure

00:13

Hear the potential answers...Pausing.

00:17

Well it just want to make sure we have a basic understanding of angles.

00:21

In our diagram were only told the measure of angle 4

00:24

So how does that get us to 15? Well if we know about

00:28

vertical angle we should know that angle 7

00:32

the one opposite angle 4 is also 105 degrees

00:35

Next because we're told a and b are parallel we should realize that angle 7 and 15

00:41

would have the same measure.

00:43

So our answer is D.

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