The dimensions of rectangle B are twice the dimensions of rectangle A. The area of rectangle B is 200cm2. What is the area of rectangle A?
Let the dimensions of rectangle A be l and w.
Therefore, the dimensions of rectangle B are 2l and 2w.
The area of rectangle B is given by:
Area of B = 2l * 2w = 4lw
Given that the area of rectangle B is 200cm^2, we have:
4lw = 200
Dividing both sides by 4, we get:
lw = 50
Therefore, the area of rectangle A is 50cm^2.