Question 301720
If the two sides are 30 and the third the hypotenuse is 
sqrt(2*30^2)
sqrt(1800)=30*sqrt(2)=hypotenuse
or if the hypotenuse is 30
2a^2=30^2
2a^2=900
a^2=450
a=sqrt(450)
a=15sqrt(2)
the two equal sides are 15sqrt(2)