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____ft P 12ft A _____and____ sq ft

Answer 1

one thing to keep in mind, since this is an equilateral triangle, then all sides are the same. So then, if there are 3 sides of equal length what would you say the length of s is?

Answer 2

Remember that the perimeter was given to you already with a value of 12

Answer 3

you must be off doing something.. I don't know.. but basically 3s=p
and you know p so s is easily solved for

and the area of a triangle is
base*height * 1/2

and to find height just use the Pythagorean theorem

Answer 4

therefore
Area = (1/2)*4*2sqrt3