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SAT Math: Calculating Side Length of a Triangle Using Proportions or Trigonometric Functions 2 Views
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Description:
For the right triangle above, if cos(90° – Z°) is
, what is the length of YZ?
Transcript
- 00:00
Yeah Straighter than thirteen So why's he must be four
- 02:02
times greater than five which is twenty Well if five
- 02:05
twelve thirteen triangles aren't your thing the pythagorean theorem can
- 02:08
offer a helping hand Here is well the high pot
- 02:10
news is fifty two So that's our sea that gives
Full Transcript
- 02:13
us y c squared Plus forty eight square day is
- 02:15
fifty two squared Why's he squared Plus two three or
- 02:18
four is twenty seven o four and then we just
- 02:21
kind of subtract from both sides against y z squared
- 02:24
is four hundred square root of four hundred twenty so
- 02:28
length of y z is twenty The answer is b
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SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
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