48.488m2.
Two
120 square miles.
21
The area of rectangle is : 15.0
The area of rectangle is : 152.0
The area of a rectangle is its length times its height A = bh A = 3 x 7.5 = 22.5 cm squared
A rectangle with no sides is no longer a rectangle as a rectangle HAS 4 sides. The x-y plane is an infinite flat area with no limits (sides) to it.
The area of rectangle is : 54.0
The rectangle must have sides with lengths of 20, 20, 10, and 10. 20+20+10+10 = 60 (perimeter) 20*10 = 200 (area)
It would be a rectangle. The lengths of the sides must be such that the length times the width equals 36: So it could be a square with sides 6; or A rectangle with sides 4 and 9; or A rectangle with sides 3 and 13; or A rectangle with sides 2 and 18; or A rectangle with sides 1 and 36; or A rectangle with sides ½ and 72, etc The rectangle can get as thin as you like and would become longer to accommodate the area.
The area of rectangle is : 28.0
The area of rectangle is : 12.0