Please help me out!!!

Answer:
you hgave a 2 and you use 5 and you have to add it and it will be 12 and your answer is 15
Step-by-step explanation:
Answer:
short = 6
long = 6√3
Step-by-step explanation:
The triangle is 30 60 90 right triangle
If hypotenuse = 12, then short leg = hypo. / 2 = 12/2 = 6
long leg = short leg * √3 = 6√3