Arc cd is 1/4 of the circumference of a circle. what is the radian measure of the central angle? π/4 radians
π/2 radians
2π radians
4π radians

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

What is the product? a-3/15a × 5/a-3