Question

I really don't understand what it is asking. Also I need help.​

Answer 1

1) 45°; 2) 3√2.

Explanation:

1) according to the condition the lengths BC=AC and m(∠C)=90°, it means m(∠θ)=(180-90)/2=45°;

2) if AC=BC=3 and m(∠C)=90°, then AB=AC*√2=3√2