HELP ASAP...Four swimmers each completed 25 yards of a 100-yard relay. In the order that they swam, swimmers' times are given below: First swimmer in relay: 13 secords

Second swimmer in relay: 14.273 seconds

Third swimmer in relay: 16.04 seconds

Fourth swimmer in relay: 11.802 seconds

Which statement is true?

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.°