#trigonometry

1 messages · Page 1 of 1 (latest)

little larkBOT
#
  1. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
  2. Wait patiently for a helper to come along.
  3. Once someone helps you, say thank you and close the thread with:
    +close
    
  4. Feel free to nominate the person for helper of the week in #helper-nominations
  5. Do not ping the mods, unless someone is breaking the rules.
  6. If you're happy with the help you got here, and the server overall, you can contribute financially as well:
languid kraken
#

For 3g, divide the triangle into two right triangles. Such that a=10 and b=a/2

#

Height(base/2) for the area of one of the two triangles

#

Then multiply it by 2

golden vault
#

trigonometry hooray

#

equilateral triangles have angles that are all 60 degrees

languid kraken
#

For 3h, use sin to find the hypotenuse and then find the remaining side with Pythagorean theorem

golden vault
#

its slow

#

do 1/2 ab sin c

#

you have to use trig

languid kraken
#

3g doesn’t need trigonometry

#

Okay i know it says it

#

H=(7.6-1.2)/sin(31)

#

The side in question for 3h will be

\sqrt{(\frac{7.6-1.2}{\sin(31)})^2-(7.6-1.2)^2}
unique sonnetBOT
#

M
Compile Error! Click the errors reaction for more information.
(You may edit your message to recompile.)

golden vault
#

bruh

#

so its

#

1/2 * 10mm * 10mm * sin(60)

#

i know sin60 is

#

root3/2

#

so its

#

50mm * root3/2

#

so its 50root3/2

#

which cancels

#

to 25root3

#

@gloomy kiln understand?

#

rip

#

25root3

#

not root2

#

kk

#

its a simple formula to remember ngl

languid kraken
#
\begin{align}
5^2+b^2=10^2\\
b=\sqrt(75)\\
2\cdot\frac{1}{2}\cdot5\cdot\sqrt(75)\\
5\cdot5\cdot\sqrt(3)\\
25\sqrt(3)
\end{align}
unique sonnetBOT
golden vault
#

OH MY FUCKING DAYS BRO

#

READ THE QUESTION

#

IT SAYS USE TRIGONOMETRY

golden vault
#

SO ITS 1/2 ab sinC

languid kraken
# golden vault READ THE QUESTION

I said I acknowledge it says to use trigonometry but I was showing you that it’s not necessary. It sounded before like you were saying it was the only way

dark rover
#

also don't give the answer directly

#

moreover M's second answer is implicitly trigonometry as it leverages the properties of a right triangle

golden vault
#

im gonna start tweaking istg

dark rover
#

you don't need to be rude about it

golden vault
#

but the problem is that theyre using pythagoras when the question CLEARLY states to use trig

dark rover
#

If you get it, then let's stop it here

golden vault
#

yeah fair

dark rover
#

nvm you didn't get it

#

whatever, I cba to explain why M's answer is valid for the third time

golden vault
#

but WHY tho

dark rover
#

I'm not going to explain a third time, so just take it or leave it

golden vault
#

yeah tru

#

its a wednesday afternoon and its hot asf

#

Im not gonna waste anyones time