Question

A triangle has vertices at (-2, 1), (2, 4), and (-1, -2). Find its perimeter and round to thetenths place.

Answer 1

Explanation

we are given the vertices of a triangle to be (-2, 1), (2, 4), and (-1, -2).

To compute the perimeter of the triangle, we will first make use of the Pythagoras theorem

Finally, we will sum all the sides together to get the perimeter

$p=a+b+c=6.71+3.16+5=14.87$

Thus, the perimeter is 14.9 units