The perimeter of a rectangular window is 318 cm.
If the width of the window is 63 cm, what is its length?
Length of the window:
cm

I think the length is 96

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

11

step-by-step explanation:

32.50-7.50=25

225/25=11