Given:
Anju cut square of tin, of edge 3.7 cm, from a larger square of edge 6.3 cm.
To find:
The area of the remaining tin.
Solution:
Area of a square is:

Where, a is the edge of the square.
Area of the smaller square is:


Area of the larger square is:


The area of the remaining tin is:



Therefore, the area of the remaining tin is 26 sq. cm.