Answer:
Theta = 45°
BA= 7.35
Explanation:
Since the two sides given are equal, the two corresponding angles are equal and since there is a 90° angle that means the other two have to add up to 90. So dividing 90 by 2 you get 45°. Then, using the Pythagorean theorem, a²+b²=c², do 3²+3²=c². This gives you 27+27=c². Then, 54=c² and by taking the square root you get roughly 7.35