The leg of a right triangle is 2 units and the hypotenuse is 4 units. what is the length, in units, of the other leg of the triangle? 2 units 6 units square root of 12 units square root of 20 units

For any right triangle
if the legs of the traingle are a and b and the hyptonuse is c then
a²+b²=c²

given

a leg is 2
hypotnuse is 4

lets say a=2
c=4

2²+b²=4²
4+b²=16
minus 4 both sides
b²=12
sqrt both sides
b=√12
answer is √12 units