19. What term refers to a line segment from the center of the circle to any point on the
circle?
D. central angle
C. radius
A. chord
B. center
20. How do you call an angle formed by two radii?
D. inscribed angle
A. radius
C. central angle
B. diameter
21. How do you call an angle whose vertex is on the circle?
D. inscribed angle
A. radius
B. diameter
C. central angle
22. What polygons that has six equal length sides and six interior angles of 120°?
A. heptagon
B. hexagon
c. octagon
D. pentagon
23. Which polygon from the choices that has eight equal lenghth sides and eight interior
angles of 135°?
A. octagon
B. hexagon
C. heptagon D. pentagon
24. What is used to measure the angles of a polygon?
A ruler
B. meter stick C. tape measure D. protractor
25. What measuring instrument used to measure the sides of a polygon?
A. ruler
B. meter stick C. tape measure D. protractor