Question

what is the perimeter of a triangle with vertices located at (-1,4) (2,7) and (1, 5)? Round to the nearest hundredth.

Answer 1

7.40 units

Explanation:

Answer 2

Use the distance formula to find the distance between each vertices:

Distance formula: √((x2-x1)^2 + (y2-y1)^2)

(-1,4) (2,7) = 4.24

(-1,4) (1,5) = 2.24

(2,7) (1,5) = 2.24

Perimeter = 4.24 + 2.24 + 2.24 = 8.72