Question

I need help with this question!!!!!!

Answer 1

Answer:
`87^(\circ)`

Explanation:

Because an angle inscribed in a semicircle is a right angle,
`\angle B=90^(\circ)`

So, as angles in a triangle add to 180 degrees,
`\angle A=180^(\circ)-90^(\circ)-3^(\circ)=\boxed{87^(\circ)}`