Which right triangle’s unknown leg measure is StartRoot 43 EndRoot units? Assume the given length are in the same unit of measure.
A right triangle has a side with length 5 and hypotenuse with length StartRoot 90 EndRoot.
A right triangle has a side with length StartRoot 44 EndRoot and hypotenuse with length 12.
A right triangle has a side with length StartRoot 19 EndRoot and hypotenuse with length StartRoot 60 EndRoot.
A right triangle has a side with length StartRoot 21 EndRoot and hypotenuse of 8.