Answer:
The second bubble
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
So, lets demonstrate
a = 1/2 * 6 = 3
b = a* = a = 3
So,
a = 3
b = 3
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