Write down the area of a rectangle as the work of lengths of its parties. Find this work according to the multiplication table.

398
Hundred Rhone are equal. It is confirmed by the fact that: Opposite sides: 3+4=7 4 3+(2+2) = 7. In the same way other party is equal to 6. Means, the area is equal: 4*6=24sm. quarter.
14
Answer add