21 because you can do 84 divided by 21 or you can also do 4 times any number that sounds like it would =84. (Stick with option 1 unless you are super confused)
Multiply each scale factor by the first set of given perimeter and area
As shown in the picture below
Answer:
25.46
Step-by-step explanation:
Use the pythagorean thereom.
18^2 + 18^2 = c^2
324 + 324 = c^2
648 = c^2
√648 = c
c ≈ 25.46
This problem can be looked at like a right triangle, where the hypotenuse is 750 and one leg is 450. Thus 450^2 + the length of the park^2 = 750 ^2.
202500 + the length of the park^2 = 562500
the length of the park^2 = 360000
the length of the park = 600
Hope it helps <3