Question

In △PQR, find the measure of ∡P.

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0402_04/image0024e2da716.gif

We know the adjacent and hypotenuse so I *think* we're doing cos?

Answer 1

That same cookie error.

Answer 2

Tough biscuits. ;p

Answer 3

Oh I got it.

Answer 4

lol

Answer 5

So, we know the hypotenuse and adjacent.

Answer 6

@rebeccaskell94 do you know what's
\[\cos P\]?

Answer 7

the hypotenuse is 57.6 and the adjacent is 33.8

Answer 8

Ash that isn't in the lesson

Answer 9

Yeah, so arccos P = ??

Answer 10

I don't know what the opposite is? 57.6 ÷ 33.8?

Answer 11

That just says.. what is cos P? Correct

Answer 12

@rebeccaskell94 Do you know trigonometry ?

Answer 13

Now input arccos x = 57.6/33.8 in a calculator

Answer 14

ohh duhr. I'm a retard.

Answer 15

1.7 @ParthKohli
@ash2326 I don't know what is what anymore haha I know math

Answer 16

@ParthKohli
it'd be
\[P=\arccos{\frac{33.8}{57.6}} \]

Answer 17

oops

Answer 18

No.. thats correct. I am semi-afk. Lol, can't concentrate.

Answer 19

Good thinking, Becca. It's
cos(x) = 33.8/57.6
and then to UNDO cos(x) we use arccos on both sides.

Answer 20

How do I do that?

Answer 21

Your calculator.

Answer 22

x = arccos(33.8/57.6)

Answer 23

TAKE a paper or calculator

Answer 24

Except your calculator might have it as
\[\cos^{-1}\]

Answer 25

as in cosine inverse, which is the same thing as arccos.

Answer 26

Ah! yes cos-1 is what I have

Answer 27

hey why u block me dear?

Answer 28

Parth stay out of it.

Answer 29

parth isme demag mat laga...

Answer 30

Anyway...answer is 54.06935309233252

Answer 31

Good work. =D

Answer 32

Thanks dollface :D

Answer 33

hey????????????????????????????

Answer 34

Y helo thar.

Answer 35

lol

Answer 36

54.1 is wrong