Question

PLEASE HELP ME ASAP!!!!! I ATTACHED A PHOTO AND THANK U SO MUCH

Answer 1

Explanation:

P(-6,-1) , Q(2,-1) ; R( -2 , 4)

Distance =
`\sqrt{(x_(2)-x_(1))^(2)+(y_(2)-y_(1))^(2)}`

`PQ = \sqrt{(2-[-6])^(2)+(-1-[-1])^(2)}\\\\ =\sqrt{(2+6)^(2)+(-1+1)^(2)} \\\\=\sqrt{(8)^(2)+0} \\\\= √(64)\\\\= 8 units\\\\\\QR = \sqrt{(-2-2)^(2)+(4-[-1])^(2)} \\\\=\sqrt{(-4)^(2)+(4+1)^(2)} \\\\=\sqrt{(-4)^(2)+(5)^(2)} = √(16+25)\\\\= √(41)\\\\`

`PR= \sqrt{(-2+6)^(2)+(4+1)^(2)} \\\\=\sqrt{(4)^(2)+(5)^(2)}\\\\= √(16+25)\\\\= √(41)`

Perimeter =
`√(41) +√(41)+8\\`

=
`2√(41) +8`

= 2 *6.4 + 8

= 12.8+8

= 20.8 units