rectangle problem 4:
The area of a rectangle is 361 square meters and the length is 23 meters.
calculate a) length? b) perimeter?
a) answer width
A = length * width
391 = 23 * width / : 23
width = 17 m
A: The width of the rectangle is 17 m.
b) answer perimeter
P = (l + w) * 2
P = (23 + 17) * 2
P = 80 cm
A: The perimeter of the rectangle is 80 cm.