Answer:
3.9
Step-by-step explanation:
- use the Pythagorean Theorem whish is [tex]a^{2}[/tex]+[tex]b^{2}[/tex] = [tex]c^{2}[/tex].
so, 1 + [tex]b^{2}[/tex] = 16
b = [tex]\sqrt{15}[/tex] which is about 3.9 or 3.87
also btw I only got 5 points from answering how does that work
