Wk 26: EOL: QUIZ 7.1 & 7.2

1. What is the sum of the degrees of the interior angles of a 21-gon?

2. If the sum of the interior angles of a polygon is 1620°, how many sides does it have?

3. What is the measure of an interior angle of a regular decagon?

4. What is the sum of the exterior angles of a 32-gon?

5. What is the measure of each exterior angle of a regular heptagon?

Find the value of x.

Find the value of x.

8. Given PQ = 24, PS = 19, PR = 42, TQ =10, m<PQR = 106, m<QSR = 49, and m<PRS = 35. Find each missing value.

9. If ABCD is a parallelogram, find m∠C.

11. Which quadrilaterals always have diagonals that are perpendicular?

12. If ABCD is a parallelogram, AD = 14, EC = 11, m∠ABC = 64°, m∠DAC = 71°, and m∠BDC = 25 °, find each measure.

13. If JKLM is a rhombus, MK = 30, NL = 13, and m∠MKL = 41°, find each measure.

14. If CDEF is a parallelogram, find m∠FCD.

15. If PQRS is a rhombus, find m∠PQR.

16. Quadrilateral BCDE has vertices B(-1, -1), C(6, -2), D(5, -9), and E(-2, -8). Determine the most precise classification of BCDE: a parallelogram, rectangle, rhombus, or square. Use the distance formula to justify your answer.