Answer:
18cm
Step-by-step explanation:
We have the length of the rectangle but we need to find the width which we'll call w. Area is a, l is length.
a = l * w
20 = 5 * w
divide both sides by 5 to cancel the multiplication by 5 on the right side
4 = w
The rectangle is going to have two sides that are the length of l, and two sides that are the the length of w. We're looking for the perimiter p.
p = 2l + 2w
p = (2 * 5) + (2 * 4)
p = 18
Answer:
1.3445367773335334434333233332
Answer:
A reflection
Step-by-step explanation:
It has been mirrored.
All of the values follow the same formula rule. n= n x (n-1) / 2
Use this formula to find the number of segments.
