Find the perimeter of the figure S(-8,1), R(3,4), T(1,-2)

Answer 1

To find the perimeter, you need to find the length of all 3 sides and then add them together. To find the length between 2 points, you can use the distance formula.

d=√((x₂-x₁)2+(y₂-y₁)²) (Everything is under the square root symbol.

I will find the distance between (3,4) and (1,-2)

√((3-1)²+(4-(-2))²) = √((2)²+(6)²) = √(4+36) = √40 = 2√10

Do this for the other 2 sides and add them together, that will be the perimeter.