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Geometry and Measurement Videos 88 videos

SAT Math 2.1 Geometry and Measurement
2779 Views

SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?

SAT Math 1.1 Geometry and Measurement
719 Views

SAT Math 1.1 Geometry and Measurement. What is the circumference of the circle?

SAT Math 1.2 Geometry and Measurement
246 Views

SAT Math: Geometry and Measurement Drill 1, Problem 2. If A = (0, 4), B = (-3, 2), and C = (1, 0), which point is in the interior of angle ABC?

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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

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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