PROMISE TO GIVE BRAINIEST BUT ONLY IF YOU GET IT RIGHT!

Answer:
5.2
Step-by-step explanation:
Formula for any right triangle is a^2 + b^2 = c^2
So plug in the values and you get:
a^2 + 3^2 = 6^2
convert the squared numbers and you get:
a^2 + 9 = 36
subtract 9 from both sides
9 = 36
-9 = -9
you get:
a^2 = 27
we can't have a squared number as our answer, so we find the square root of both.
[tex]\sqrt{a^2 = 27}[/tex]
a^2 cancels out and you get:
a = 5.2 (simplified and rounded to nearest tenth)
Answer:
3√3
Step by step explanation:
36^2- 3^2= 27
√27= 3√3
3√3 = 5.2