Question

The information given represents lengths of sides of a right triangle with c the hypotenuse. Find the correct missing length to the nearest hundredth. A calculator may be helpful.
a = ?, b = 12, c = 19


14.03
14.38
14.73
15.07

Answer 1

Since it is a right triangle, then a^2+b^2=c^2, and a=sqrt(c^2 - b^2), 
a=sqrt(361-144)=14.73
the answer is 14.73