Answer:
16.3 units ( to 1 dec. place )
Step-by-step explanation:
Using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = A(- 1, 3) and (x₂, y₂ ) = B(11, - 8)
AB =
=
= ≈ 16.3 ( to 1 dec. place )
32
A = l*w
55 = 5*w
55 /5 = 5w/5
11 = w
The perimeter is
P =2(l+w)
P = 2(5+11)
=2(16)
= 32
im sorry