We can use the Pythagorean theorem to solve for the missing angle.
Formula: [tex]a^2+b^2=c^2[/tex]
a = 1.5
b = ?
c = 2.5
Now, we can solve for the missing side (b).
[tex]1.5^2+b^2=2.5^2\\2.25 + b^2 = 6.25\\2.25 - 2.25 + b^2 = 6.25 - 2.25\\b^2=4\\\sqrt{b^2}=\sqrt{4}\\b=2[/tex]
Therefore, the correct answer is option B.
Best of Luck!
