Answer:
The width of B. is 2.5cm
Step-by-step explanation:
Rectangle A has 40cm^2 and a length of 8.
Rectangle B. has an area half of 40cm^2 which would be 20cm^2.
Area of B has an area of 20cm^2
Now we need to find the width of B.
All that we know is that B. has an area of 20cm and it has the same length as A, and that length is 8.
Everyone knows that you multiply the length by the width to find the area of a shape.
8 times something = 20
We can do that backward and divide 8 by 20 which is 2.5
To check this answer we multiply 2.5 by 8 which = 20
The width of rectangle B. is 2.5cm.
<em>I hope that this helps! -Karen</em>
