Question

1.Each vertex angle is 90°in________.
2.If a=3and b=2,then the value of ab-ba is __________.
3. The compound ratio of 3:4 and 2:3 is____________.
4.____________ is the mode of 10,12,11,9,11,10,15,20,11,10,19,9,11
5.what will be units digit in the square of 5125____________.​

Answer 1

Answer:

1. rectangle
2. 72
3. 1:1
4. natural number
5. 5