#how do you find area when you have median and two sides?
66 messages · Page 1 of 1 (latest)
- 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.
- Wait patiently for a helper to come along.
- Once someone helps you, say thank you and close the thread with:
+close - Feel free to nominate the person for helper of the week in #helper-nominations
- Do not ping the mods, unless someone is breaking the rules.
- If you're happy with the help you got here, and the server overall, you can contribute financially as well:
@tulip holly Can you send a picture of your question?
wdym median?
do you mean angle?
if so then you use 0.5 * side a * side b * sin(C)
As far as my brain will stretch, the first thing that comes to mind is Mean Median Mode
bruh
its like the line which joins the middle of the opposite side
ikr
so its rhe heigjt?
depending on the subject as well
area = base*height/2
is for right angle
and scalene
and isoceles
however if youre doing trigonometry
its 1/2 * a* b * sinC
no..
opposite to what???
Try duplicating the traingle and rotate it so that the median in in line and BC matches
it proves 1/2 absin(c)
although you need angle to find median
so the median is the midpoint of the base?
wait no its a line from the top to the base
midpoint of the base
yes
if you have median length and two sides length
I believe this relation could be useful
I was summoned
OHHHHH
Yes I can do that
Right lemmie get my math book
Ok, so. The formula to find the area of a triangle is Base times Hight times Two
Ah devided by two..
Right devided
B * H / 2 = A
The height here is the Median
So you need to find D, the base, and times it by Median, the height
$$ c^2 * n + b^2 m = a(d^2+mn) $$
roltt
Here since its the median, m = n
Thus we get
How does m = n?
ah wait I see
Because its the median
median is NOT the height
d is the median, no?
Yes length of median
Ahh I thought it looked skew..
Since n = m and a = m/2 = n /2
$$ a/2( c^2 + b^2 ) = a(d^2 + (a/2)^2 ) $$
Right
roltt
So with this relation you can find the third side, then probably apply Heron's Formula to get the area
@tulip holly
Oh wait I haven't even touched on this subject yet
Why r u in the ticket
?
Ahh I see you're smarter!
I deem myself useless, Triangles are easy and you've got this Coffey!
@tulip holly
You can search up Stewart's theorem for more or Appolonius theorem