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Area & Perimeter. Composite /Shaded. Regular Polygons. Change of Dimension. Geometric Probability. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500.

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  1. Area & Perimeter Composite /Shaded Regular Polygons Change of Dimension Geometric Probability 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

  2. Find the perimeter and the area of the triangle.

  3. What is P = 18 cm A = 12 cm2

  4. If the area of the triangle is 36 m2 , what is the height of the triangle?

  5. What is h = 8 m

  6. In a trapezoid, if the area is 232 cm2 and the bases are 19 cm and 10 cm, what is its height?

  7. What is h = 16 cm

  8. In a trapezoid, if the height is 12 in, the area is 270 in2, and one base is 28 in, what is the length of the other base?

  9. What is b1 = 17 in

  10. Find the perimeter and the area of the triangle.

  11. What is P = 17.8 cm A = 4 cm2

  12. Find the area of the shaded region.

  13. What is A = 36 cm2

  14. Find the area of the shaded region.

  15. What is A = cm2 or 103.7 cm2

  16. The figure consists of an isosceles triangle and a semicircle with a 20 cm diameter. Find its area.

  17. What is A = 386.2 cm2

  18. In the figure, the curved end is a semicircle. Find the area of the figure.

  19. What is A = 116.1 cm2

  20. Each vertex of rhombus ABCD is a midpoint of a side of the rectangle. If the dimensions of the rectangle are 22 ft by 18 ft, find the area of the shaded region.

  21. What is A = 198 ft2

  22. Find the area of an equilateral triangle with a side length of 12 ft.

  23. What is A = 62.4 ft2

  24. Find the area of an equilateral triangle with a radius of 8 in.

  25. What is A = 83.1 in2

  26. Find the area of a regular hexagon with a side length of 9 yds.

  27. What is A = 210.4 yd2

  28. Find the area of a regular octagon with an apothem of 7 m.

  29. What is A = 162.4 m2

  30. Find the area of a regular decagon with a radius of 12 ft.

  31. What is A = 423.2 ft2

  32. Suppose there are two similar rectangles; one has dimensions 9 in by 13 in, and the other is 13.5 in by 19.5 in. Give their: Similarity Ratio Perimeters Ratio Areas Ratio

  33. What is A) B) C)

  34. Suppose the radius of a circle is tripled. How does the circumference of the larger circle compare to that of the smaller circle? How does the area of the larger circle compare to that of the smaller circle?

  35. What is • It’s tripled • It’s 9 times bigger

  36. If the width of the rectangle is doubled, how does it change the perimeter area

  37. What is • It’s doubled • It’s doubled

  38. If the area of the small triangle is 5 cm2, find the area of the large triangle.

  39. What is A = 31.25 cm2

  40. If the width of the small rectangle is 2 cm, find the length of the large rectangle.

  41. What is w = 2.5 cm

  42. If a point is chosen at random within the circle, what is the probability that it will be in the green region?

  43. What is or 33.3%

  44. If a point is chosen at random within the rectangle, what is the probability that it will be in the shaded region?

  45. What is or 62.5%

  46. If a point is chosen at random within the triangle, what is the probability that it will be in the shaded region?

  47. What is or 75%

  48. If a point is chosen at random within the larger circle, what is the probability that it will be in the red region?

  49. What is or 25%

  50. If a point is chosen at random within the circle, what is the probability that it will be in the shaded region?

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