Answer:
a=bh/2
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)
so
The perimeter is equal to

where
b is the length side of the equilateral triangle
we have

substitute

solve for b

Find the area
The formula of area applying the law of sines is equal to

substitute the value of b




36÷6 is 6 to show your work for it maybe draw it out and better show the equation like when you solve a bigger problem.
X=2 is the answer hope it helps