Find the square of the number 89 by visual method.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Number is 89.

Thus, we have 89 = 80 + 9

We will now draw a square of 89 units and divide it into 4 parts as below:

Hence, (89)2 = 6400 + 720 + 720 + 81 = 7921

Answered by  | 4th Jun, 2014, 03:23: PM