Answer:
The second bubble
Step-by-step explanation:
In a 30 60 90 triangle as shown here a is always 1/2 the hypotenuse (Which the hypotenuse is 6) and then just add to the end of it to get b
<em>So, lets demonstrate</em>
a = 1/2 * 6 = 3
b = a* = a
= 3
So,
a = 3
b = 3