The leg of a right triangle is 2 units and the hypotenuse is 3 units. what is the length, in units, of the other leg of the triangle?
a.square root of 5 units
b.square root of 13 units
c.5 units
d.13 units

I hope this helps you

3^2=2^2+length ^2

9-4=length ^2

length = square root of 5

Whether her conversion is correct or not, you can just base it on the true answer. For this problem, we apply the technique of dimensional analysis. You can like units if they both appear in the numerator and the denominator side. The solution is as follows:

Mass in ounces = 3 kg * (1,000 g/ 1 kg) * (1 ounce/28.35 g) = 105.82 ounces