Question

Help me asap please

Answer 1

A(-3, -1); B(2, -1), C(2, 3)

You can read the length of AB and BC.

|AB| = 5

|BC| = 4

Use the Pythagorean theorem:

`|AC|^2=5^2+4^2\\\\|AC|^2=25+16\\\\|AC|^2=41\to|AC|=√(41)\\\\|AC|\approx6.4`

The perimeter:

`P=|AB|+|BC|+|AC|\\\\P=5+4+6.4=15.4`