ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
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 1.2 Plane Geometry 369 Views
Share It!
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.
Related Videos
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
Sure, Romeo and Juliet were a great pair, but they don't hold a candle to linear pairs. Find out more by clicking play.
This video explains the vertical angle theorem. Learn about supplementary angles, adjacent angles, and linear pairs, plus bungee jumping. Intersect...
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.