20 questions
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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. - PowerPoint PPT PresentationTRANSCRIPT
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20 Questions
Chapter 10 Review
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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
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Answer to Question #1
16 Sides
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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
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Answer to question #2
140 degrees
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3. Polygons
Find the sum of the measures of the exterior angles of a convex nonagon.
Answer
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Answer to question #3
360 degrees
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4. Polygons
Find the sum of the measures of the interior angles of a convex 14-gon
Answer
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Answer to question #4
2160 degrees
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5. Polygons
How many sides are in a regular polygon if each interior angle measures 144º?
Answer
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Answer to question #5
10 Sides
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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
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Answer to question #6
25 square units
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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
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Answer to question #7
437 square inches
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8. Parallelograms
Find the area of a parallelogram with side lengths 8cm and 16cm and an acute angle of 45º.
Answer
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Answer to question #8
90.51 sq. cm
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9. Triangle, Rhombi, and Trapezoids
Find the area of a rhombus with sides 8 inches and diagonals of 12 inches and 9 inches.
Answer
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Answer to question #9
54 sq inches
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10. Triangle, Rhombi, and Trapezoids
Find the area of an isosceles trapezoid with base angles of 30º, height of
6 3 and a long base of 150 cm
Answer
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Answer to question #10
1496.49 sq cm
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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
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Answer to question #11
16 cm
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12. Triangle, Rhombi, and Trapezoids
Find the value of h
10cm
24cm26cm
h
Answer
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Answer to question #12
9.23 cm
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13. Regular Polygons and CirclesThe area of triangle ABC is 24 sq meters.
If AC = 6 m and AB is a diameter, find the area of the circle
A
C
BAnswer
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Answer to question #13
25sq meters
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14. Regular Polygons and Circles
Find the area of a regular octagon with radius of 5 yd.
Answer
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Answer to question #14
70.71 sq yds
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15. Regular Polygons and circles
Find the area of a regular hexagon with a side length of 22 ft.
Answer
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Answer to question #15
1257.47 sq. ft
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16. Regular Polygons
Find the area of a regular decagon with an apothem of 3 cm
Answer
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Answer to question #16
29.24 sq. cm
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17. Regular Polygons
Find the area of the shaded region. AB = 8 ft. C is the midpoint of AB
Answer
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Answer to question #17
110.85 sq. ft
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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
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Answer to question #18
10/25 = 2/5 = .4
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19. Geometric ProbabilityFind the area of the sector (inside the
central angle).
120º
4 cm
Answer
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Answer to question #19
16.76 sq cm
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20. Geometric Probabilities
Find the probability that a point chosen at random lies in the shaded region.
Answer
10 cm
10 cm
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Answer to question #20
.215