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Angle Congruence Videos 4 videos
This video explains similar figures and how to figure out if two shapes are similar using sides and angles. Plus, it discusses how to use one shape...
This video explains similar figures and how to figure out if two shapes are similar using sides and angles. Plus, it discusses how to use one shape...
ACT Math: Plane Geometry Drill 5, Problem 3. What is the measure of Angle GHJ?
ACT Math 1.2 Plane Geometry 369 Views
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Description:
ACT Math: Plane Geometry Drill 1, Problem 2. In the following diagram, what does Angle 2 measure?
- Plane Geometry / Parallel and perpendicular lines
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Spanish Subtitled
- Foreign Language / Chinese Subtitled
- Geometry / Congruence
- Geometry / Understand congruence in terms of rigid motions
- Congruence / Understand congruence in terms of rigid motion
- Plane Geometry / Properties of plane figures
- Plane Geometry / The concept of proof and proof techniques
Transcript
- 00:02
Gettin' shmoopy with it...
- 00:05
In the following diagram, lines A and B are
- 00:07
parallel. Line C is perpendicular. Angle 4 measures 105°.
- 00:12
What does Angle 2 measure?
- 00:13
And here are the potential answers...
Full Transcript
- 00:17
OK so what is this question asking?
- 00:19
Yeah -- line D... and the measurement of Angle 4... are total decoys.
- 00:23
All we need to recognize is that, because C is perpendicular to A...
- 00:28
...All of the angles located at the intersection of those two lines will be 90 degrees.
- 00:34
In fact, that little square thingy tells us the same thing... that we're dealing with right angles.
- 00:39
So our answer is C.
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