Find the area of the rectangular path

Matching exercise

    
Match the items on the right to the items on the left.
If the area of the inner rectangular region is 15 sq.cm and the area of the outer rectangular region is 48 sq.cm
If inner rectangle size is 20×12 and Outer rectangle size is 36×24
A floor is 10 m long and 8 m wide. A carpet of size 7 m long and 5 m wide is laid on the floor. Find the area of the floor that is not covered by the carpet
If inner rectangle size is 70×40 and Outer rectangle size is 80×50
33 sq.cm
624
45
1200