Answer: A = 60
Explanation:
The length difference between the two rectangle is 21 - 12 = 9
Find width of rectangle NPQR:
294/21 = 14
We know that in order for rectangle JKLM to be the same as NPQR the length need to plus 9 and so is the width:
Which mean the width of JKLM is:
14 - 9 = 5
Now we can find the area of JKLM:
A = 12 x 5 = 60
