Question

Think of an equilateral triangle in which the length of a side is s, the perimeter (distance around the triangle) is p, and the area is A. Find the missing parts. s=? p=? area= 9 sqaureroot of 3

Answer 1

ill try:)

Answer 2

thank you soo much!! i really need someones help! :)

Answer 3

ok so.. the formula of the area of an equilateral area is

Answer 4

http://www.mathwords.com/a/a_assets/area%20equilateral%20triangle%20formula.gif

Answer 5

but how do i get s? if i have to divide it? Im so confused.

Answer 6

:/ tryna help but i really dont know:/ im soo sorry

Answer 7

\[A=9 \sqrt{3}=\frac{1}{2} b h\]
So we have that the base, b, of the triangle is s
b=s

So we have
\[9 \sqrt{3}=\frac{1}{2}s h\]

So this means we have
\[(2) 9 \sqrt{3} =\frac{1}{2}sh (2)\]
\[18 \sqrt{3} =sh\]

So is there a way to write h in terms of s
Well remember we have an equilateral triangle with each side s
and h, the height of the equilateral can be found in terms of s by using the Pythagorean Theorem