Question

Can someone help me with some Geometry questions?

Answer 1

@sleepyjess

Answer 2

I'm not sure about the last part, but I know I can help with finding sin(x) and cos(y)

Answer 3

Okay :)
Do you know SOH-CAH-TOA?

Answer 4

Yes, SOH = Sin(x) = opposite/hypotenuse
CAH = cos(x) = adjacent/hypotenuse
TAO = tan(x) = adjacent/opposite

Answer 5

Yep, so let's do sin(x) first, from angle x point of view:

Answer 6

But we don't have the hypotenuse

Answer 7

Yep, so how do we find the hypotenuse?

Answer 8

Do we use tan?

Answer 9

Pythagorean Theorem :)

Answer 10

Oh... I;m still a bit confused :P

Answer 11

I kno how it is, but how do we apply it?

Answer 12

Whoops, sorry, I didn't get a notification that you responded

We have a and b to use

Answer 13

Its all good :)
I dont remember how to do the rest :P

Answer 14

\(8^2 + 6^2 = c^2\)

Answer 15

Oh, okeee...
That would equal to 100

Answer 16

10^2

Answer 17

Yep, now \(\sqrt{100}\) = ?

Answer 18

10, yep haha

Answer 19

@sleepyjess The last part, X and Y are related because the must add up to 90 because each triangle angles add up to 180 and there is a right angle. 180-90=90. So X+Y=90

Answer 20

Yes, so we know that the hypotenuse is 10

Answer 21

ah, thanks @Phil1111 :)

Answer 22

And now we have to find sin?

Answer 23

Yep, now we find sin(x)

Answer 24

Alright, so, 6/10 = 0.6
Would that be the answer for sine?

Answer 25

Or am I missing something?

Answer 26

That's correct :)

Answer 27

Now cos(y) from y point of view:
http://prntscr.com/6z8a98

Answer 28

So, that would also equal to 0.6

Answer 29

yep :)

Answer 30

Alright, this is what I have...

Answer 31

First, we have to find the hypotenuse by using the Pythagorean theorem.
8^2 + 6^2 = c^2
64 + 36 = 100
√100 = 10^2
The length of the hypotenuse is 10
Next, we have to find SOH.
sin(x) = 6/10
sin(0.6)
The Sine here is 0.6.
Lastly, we have to find CAH.
cos(x) = 6/10
cos(0.6)
This means that the cosine also equals to 0.6.

Does it sound good?

Answer 32

That is awesome :)

Answer 33

Yay!
Now, for the last part of the question..?

Answer 34

Phil explained that one

@sleepyjess The last part, X and Y are related because the must add up to 90 because each triangle angles add up to 180 and there is a right angle. 180-90=90. So X+Y=90

Answer 35

Alright, thnx so much!!!

Answer 36

Do you think you could help me in a couple more tho?

Answer 37

I have 2 more :P

Answer 38

As you were helping me with this one, I did the other 4 :P XD

Answer 39

I actually have to go get ready for gymnastics, but maybe @welshfella can help :)

Answer 40

Well, could you @welshfella? :P

Answer 41

ok

Answer 42

Alright, thnx so much!

Answer 43

I'll tag u, give me a sec