Could someone help me with 5 Geometry questions? I will fan and medal :)

- Unofficialllyy

Could someone help me with 5 Geometry questions? I will fan and medal :)

- Stacey Warren - Expert brainly.com

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- katieb

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- Unofficialllyy

1. Given the triangle below, which of the following is a correct statement?
\[\cot

**
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- anonymous

Do you still remember your inverse trigonometric ratios?

- Unofficialllyy

Yes.
csc= hypotenuse/opposite
sec=hypotenuse/adjacent
cot=adjacent/opposite

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## More answers

- anonymous

okay cool :)
So from there, it is just trial and error as you see which of A,B,C or D is correct ^^

- Unofficialllyy

I'm kind of confused though, the csc options are 3/4 or 4/3 but where are they getting those numbers from?

- anonymous

There are gotten, by interpreting the diagram :)
Here I'll explain how to get the correct one !

- Unofficialllyy

I think it's the last option

- anonymous

Yeah it is the last one !

- Unofficialllyy

I just realized that 8 is the hypotenuse and half of 8 is 4, and the opposite is 6 and half of 6 is 3 :)

- anonymous

yeah, simplification is the way to go ^^

- Unofficialllyy

I have 4 more so let me post the next one.
2. Use △DEF, shown below, to answer the question that follows:
What is the value of X rounded to the nearest hundredth? Type the numeric answer only.

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- anonymous

Ah no problem !

- anonymous

So do you know how to start the next one?
Do you remember your trig formulas for both Right angle and non-right angle triangles ?

- Unofficialllyy

No not off the top of my head

- anonymous

Ah okay, I'll help out !
Sine Rule for non-right angle triangles is
SinA = SinB
a b

- anonymous

Alternatively, when you forget next time, you can quickly search via the internet for the formulas : )

- anonymous

In this particular question, we are working with the formula
SinA = SinB
a b

- Unofficialllyy

I think I got it, one sec.

- anonymous

Alright cool ~

- Unofficialllyy

41.51?

- anonymous

Yes !
that is correct

- Unofficialllyy

Yay!!
3. In △PQR, find the measure of ∡P.
A. 30.4 degrees
B. 35.9 degrees
C. 54.1 degrees
D. 59.6 degrees

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- anonymous

Alright, so now we are working with a right angle triangle, so the formulas we resort to are SOHCAHTOA

- anonymous

Which of the standard trig ratios do you think it is ?

- Unofficialllyy

Do I use the tangent function ?

- anonymous

Right again mate ^^

- Unofficialllyy

Okay I got 30.4

- anonymous

Correct !

- Unofficialllyy

4. Find the value of the csc 40° using your calculator.
This one is pretty easy lol
I got 1.556

- anonymous

yeap, way ahead of me haha, i just checked and your correct :)

- Unofficialllyy

5. In △JKL, solve for x.
A. 74.89
B. 30.29
C. 38.16
D. 66.73

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- anonymous

By the way, do you sometimes forget your inverse trig ratios? Because I got a neat trick that you can't forget them :)

- Unofficialllyy

Yeah I do sometimes!

- anonymous

The trick is to remember every 'third' letter of the inverse function
For example
Se'c' = Cos
Co's'ec = Sin
Co't' = Tan

- Unofficialllyy

Oh wow I didn't even realize that!

- anonymous

Anyways, back on track :)
I've got a solution for our next question ^^

- anonymous

Yeah haha, its a hidden trick that I picked up a while back ~

- Unofficialllyy

Do I use the cosine function?

- anonymous

yeah that's correct !

- Unofficialllyy

I got 38.16

- anonymous

Yes that correct !

- Unofficialllyy

Thank you so much, you were so helpful!

- anonymous

Glad to be of such help, anytime !

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