Question

Finding the square root through subtraction of successive odd numbers of 81

Answer 1

Answer:

9

Step-by-step explanation:

81 - 1 = 80.

80 - 3 = 77.

77 - 5 = 72.

72 - 7 = 65.

65 - 9 = 56.

56 - 11 = 45.

45 - 13 = 32.

32 - 15 = 17.