Two regular decagons are next to each other as shown in the diagram. а
Work out the value of a.

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

Write the following as a base and exponent