Question

Please help, Good 15 pt reward.

Answer 1

P ≈ 25 units

Explanation:

LM = 12 units ( horizontal line )

use the distance formula to find length of other 2 sides.

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

with (x₁, y₁ ) = L (- 3, 2) and (x₂, y₂ ) = M (3, 5 )

LM =
`√(3-(-3))^2+(5-2)^2)`

=
`√((3+3)^2+3^2)`

=
`√(6^2+9)`

=
`√(36+9)`

=
`√(45)`

Repeat with (x₁, y₁ ) = M (3, 5) and (x₂, y₂ ) = N (9, 2)

MN =
`√((9-3)^2+(2-5)^2)`

=
`√(6^2+(-3)^2)`

=
`√(36+9)`

=
`√(45)`

Then perimeter P is the sum of the 3 sides

P = 12 +
`√(45)` +
`√(45)` = 12 + 2
`√(45)` ≈ 25 units ( to the nearest unit )

Answer 2

how is annyone going to know that?

Explanation: