WILL GIVE 50 POINTS AND BRAINLIEST FOR BEST ANSWER
What types of solutions will a quadratic equation have when the discriminant b2 − 4ac in the quadratic formula is a perfect square?
A. No solutions
B. Two nonreal solutions
C. One real solution
D. Two real solutions

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle.what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle.what is the measure of angle a? enter your answer in the box.m∠a= 3.)quadrilateral abcd is inscribed in this circle.what is the measure of angle b? enter your answer in the box.m∠b= °4.)quadrilateral abcd is inscribed in this circle.what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle.what is the measure of angle c? enter your answer in the box.°