Three points A(1,-1,3), B(0,-3,1) and C(1,1,-2). Determine the perimeter of the triangle to the nearest hundredth.

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3

found it xd it ok yt