Aratio of equivalent values used to express the same quantity in different units

There is something called the conversion factor.

For example, 1km is 1000 meters, so the conversion factor that goes from km to meters, is :

And if you have a quantity expressed in kilometers, and want to write it in meters, you multiply it for the conversion factor.

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 took 13times to completely subtract it hence its square root is 13

step-by-step explanation:

the shape,the size and the distance