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20 Questions. Chapter 10 Review. 1. Polygons. The sum of the measures of the interior angles of a convex polygon is 2520. How many sides does the polygon contain?. Answer. Answer to Question #1. 16 Sides. 2. Polygons.

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20 Questions

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20 questions

20 Questions

Chapter 10 Review


1 polygons

1. Polygons

The sum of the measures of the interior angles of a convex polygon is 2520. How many sides does the polygon contain?

Answer


Answer to question 1

Answer to Question #1

16 Sides


2 polygons

2. Polygons

The sum of the measures of five interior angles of a heptagon is 690. The measure of the 6th angle is twice the measure of the seventh. Find the measure of the 6th angle.

Answer


Answer to question 2

Answer to question #2

140 degrees


3 polygons

3. Polygons

Find the sum of the measures of the exterior angles of a convex nonagon.

Answer


Answer to question 3

Answer to question #3

360 degrees


4 polygons

4. Polygons

Find the sum of the measures of the interior angles of a convex 14-gon

Answer


Answer to question 4

Answer to question #4

2160 degrees


5 polygons

5. Polygons

How many sides are in a regular polygon if each interior angle measures 144º?

Answer


Answer to question 5

Answer to question #5

10 Sides


6 parallelograms

6. Parallelograms

Find the area of a parallelogram that has vertices: A(-4, 15), B(1, 15), C(4, 10), and D(-1, 10)

Answer


Answer to question 6

Answer to question #6

25 square units


7 parallelograms

7. Parallelograms

The length of a rectangle is 4in. More than the width. If the perimeter is 84in., find the area of the rectangle.

Answer


Answer to question 7

Answer to question #7

437 square inches


8 parallelograms

8. Parallelograms

Find the area of a parallelogram with side lengths 8cm and 16cm and an acute angle of 45º.

Answer


Answer to question 8

Answer to question #8

90.51 sq. cm


9 triangle rhombi and trapezoids

9. Triangle, Rhombi, and Trapezoids

Find the area of a rhombus with sides 8 inches and diagonals of 12 inches and 9 inches.

Answer


Answer to question 9

Answer to question #9

54 sq inches


10 triangle rhombi and trapezoids

10. Triangle, Rhombi, and Trapezoids

Find the area of an isosceles trapezoid with base angles of 30º, height of

and a long base of 150 cm

Answer


Answer to question 10

Answer to question #10

1496.49 sq cm


11 triangle rhombi and trapezoids

11. Triangle, Rhombi, and Trapezoids

The area of a triangle is 160 sq cm. The height is 20 cm., Find the length of the base.

Answer


Answer to question 11

Answer to question #11

16 cm


12 triangle rhombi and trapezoids

12. Triangle, Rhombi, and Trapezoids

Find the value of h

26cm

24cm

h

Answer

10cm


Answer to question 12

Answer to question #12

9.23 cm


13 regular polygons and circles

13. Regular Polygons and Circles

The area of triangle ABC is 24 sq meters. If AC = 6 m and AB is a diameter, find the area of the circle

C

Answer

A

B


Answer to question 13

Answer to question #13

25sq meters


14 regular polygons and circles

14. Regular Polygons and Circles

Find the area of a regular octagon with radius of 5 yd.

Answer


Answer to question 14

Answer to question #14

70.71 sq yds


15 regular polygons and circles

15. Regular Polygons and circles

Find the area of a regular hexagon with a side length of 22 ft.

Answer


Answer to question 15

Answer to question #15

1257.47 sq. ft


16 regular polygons

16. Regular Polygons

Find the area of a regular decagon with an apothem of 3 cm

Answer


Answer to question 16

Answer to question #16

29.24 sq. cm


17 regular polygons

17. Regular Polygons

Find the area of the shaded region. AB = 8 ft. C is the midpoint of AB

Answer


Answer to question 17

Answer to question #17

110.85 sq. ft


18 geometric probabilities

18. Geometric Probabilities

Luke told Scott that he would arrive at the basketball game sometime between 7:20 and 7:45. Scott says that he must be on the court at 7:30. What is the probability that Luke will arrive by 7:30?

Answer


Answer to question 18

Answer to question #18

10/25 = 2/5 = .4


19 geometric probability

19. Geometric Probability

Find the area of the sector (inside the central angle).

4 cm

120º

Answer


Answer to question 19

Answer to question #19

16.76 sq cm


20 geometric probabilities

20. Geometric Probabilities

Find the probability that a point chosen at random lies in the shaded region.

10 cm

Answer

10 cm


Answer to question 20

Answer to question #20

.215


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