In the broken china plate CD =8cm, OY, the perpendicular bisector of CD =3cm what is the diameter of the plate

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Which of the following circles have their centers in the third quadrant? check all that apply.

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.°