+0

-1
128
1

What is the perimeter of the polygon formed when the points $A(-6,6), B(9,6)$ and $C(9,-2)$ are graphed and connected with straight lines?

Jun 29, 2020

#1
+8340
+1

Because AB and BC are horizontal and vertical lines,

AB = 9 - (-6) = 15 units

BC = 6 - (-2) = 8 units

By Pythagorean theorem,

AC = $$\sqrt{8^2 + 15^2}$$ = 17 units

The perimeter is 8 + 15 + 17 = 40 units

Jun 29, 2020