1. A plane figure formed by joining two non-collinear rays at its endpoint.
A. polygon B. angle C. trapezoid
D. triangle
2. A segment joining any two points on the circle passing through the center.
A. median B. radius C. diameter
D. diagonal
3. The total measure of the interior angles of a pentagon:
A. 180° B. 360° C. 540°
D. 900°
4. The total distance around a circle
A perimeter
B. polygon
C. triangle
D. circumference
5. An angle whose vertex is on the center of a circle and whose sides are radii of the circle
A. central angle B. right angle C. inscribed angle D. obtuse angle
6. How many diagonals are there in a heptagon?
A. 12
B. 14
C. 18
D. 20
7. What is the total measure of all the interior angles of an octagon?
A. 1080°
B. 1440°
C. 16200
D. 1680°
8. A polygon with eight sides.
A. heptagon
B. hexagon
C. octagon
D. decagon
9. A triangle with no equal sides but has a right angle is
A. right triangle B. acute C. scalene
D. scalene right A
B
For numbers 10 and 11, refer to the figure:
C
10. Given a parallelogram ABCD, if 4 ABD = 36°, what is the measure
of CAB? A. 54° B. 36°
C 45° D.90°​