Question

find the square root of 169 by subtraction method​

Answer 1

Answer:

13

Step-by-step explanation:

169 - 1 =168

168 - 3 = 165

165-5 = 160

160-7=153

153-9=144

144-11=133

133-13=120

120-15= 105

105-17=88

88-19 =69

69-21=48

48-23=25

25-25= 0

since it is compeletly subtracted at 13th time

:. square root of 169 is 13

Answer 2

Answer:

169<br> 169-1=168<br> 168-3=165<br> 165-5=160<br> 160-7=153<br> 153-9=144<br> 144-11=133<br> 133-13=120<br> 120-15=105<br> 105-17=88<br> 88-19=69<br> 69-21=48<br> 48-23=25<br> 25-25=0<br> There are total 13 numbers<br> So, 13 is the square root of 169.