ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Trigonometry Videos 26 videos
ACT Math: Trigonometry Drill 1, Problem 1. What is the length of y?
ACT Math Trigonometry Drill 1, Problem 2. Can you find the tangent?
ACT Math: Trigonometry Drill 1, Problem 4. Can you find the sine?
ACT Math 5.5 Trigonometry 215 Views
Share It!
Description:
ACT Math: Trigonometry Drill 5, Problem 5. What is the length of side z?
- Trigonometry / Solving right triangles
- Trigonometry / SOHCAHTOA (values and properties of trig functions)
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Spanish Subtitled
- Trigonometry / Trigonometric relations in right triangles
Transcript
- 00:02
Time for your daily dose of shmoop. This won't hurt a bit.
- 00:06
tan(B) = 5/12. What is the length of side z?
- 00:11
Choose from these options...
- 00:16
How do we find this length with the information given? Well... remember our triangle trig ratios?
- 00:23
Tangent of an angle is the length of the opposite side of the angle over the adjacent side of
Full Transcript
- 00:30
the angle. Okay... Pythagorean Theorem time.
- 00:33
Five squared plus twelve squared equals z squared.
- 00:37
25 plus 144 equals z squared.
- 00:39
169 equals z squared.
- 00:41
Taking the square root of both sides, we get that 13 equals z, which means B is the correct
- 00:47
answer. Oh, and one last thing.
- 00:49
5, 12, 13 is a common right triangle that you should memorize for the test. Don't let
- 00:54
it ambush you on test day.
Related 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: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
Haven't you always wondered how much cardboard it takes to encase a trunk warmer for your pet elephant?
Want to figure out the area and perimeter of irregular shapes? Break them down into regular shapes. For example, a flower can be broken down into s...