Geometry basic, Perimeter of triangle 2d.js

// This series of katas will introduce you to basics of doing geometry with computers.

// Point objects have x, y attributes. Triangle objects have attributes a, b, c describing their corners, each of them is a Point.

// Write a function calculating perimeter of a Triangle defined this way.

// Tests round answers to 6 decimal places.

function trianglePerimeter(triangle){
    let a = Math.sqrt((triangle.a.x - triangle.b.x)**2 + (triangle.a.y - triangle.b.y)**2)
    let b = Math.sqrt((triangle.b.x - triangle.c.x)**2 + (triangle.b.y - triangle.c.y)**2)
    let c = Math.sqrt((triangle.c.x - triangle.a.x)**2 + (triangle.c.y - triangle.a.y)**2)
    return (a+b+c)
  }