Answer:
just split the awnser
Step-by-step explanation:
Equilateral triangle is a triangle with the 3 sides of the same length, and the 3 angles with the same measures/degree.
The formula to find the area of a triangle is base x height/2 , you do have the base (40), but you need the height. To find the height of an equilateral triangle you use the formula: side/2 x radical3, this way u'll find the height and therefor can calculate the area of the triangle.
Hope that helped :)
-0.4x=2.5 divide both sides by -0.4
x=-6.25
Answer:
I think the first mistake was made in step 1
