Question

Find square of 687 by diagonal method

Answer 1

Answer:

Steps of finding out square by diagonal method. 1) Form a square and divide it into sub-squares based on the number of digits, row and column wise. Then draw the diagonals of the smaller squares. 2) Multiply each digit on the left of the square with each digit on the top of the column one by one. plz mark me brainlist:))