1. Determine the angle in isosceles triangle

In the following isosceles triangle \(ABC\), the exterior angle \(∠A\) \(=\) 90\(°\) and \(BC\) is the unequal side. Calculate the interior angles \(∠B\) and \(∠C\).

 

 

1. \(∠B =\)\(°\).

2. \(∠C =\)\(°\).