Honors Geometry Companion Book, Volume 2

9.1 Review Worksheet (continued)

9.  the area of a kite in which d 1 = (6 x + 5) ft and d 2 = (4 x + 8) ft

E

A

B

In origami, a square base is the starting point for the creation of many figures, such as a crane. In the pattern for the square base, ABCD is a square, and E, F, G, and H are the midpoints of the sides. If AB = 6 in., find the area of each shape. 10. rectangle ABFH 11. △ AEJ

H

F

J

D

C

G

12. trapezoid ABFJ

9.1.2 Developing Formulas for Circles and Regular Polygons Find each measurement. Give your answers in terms of π . 13.  the area of  M 14. the circumference of  Z

7 yd

Z

M

5 m

15.  the diameter of  G in which C = 10 ft.

16.  A horse trainer uses circular pens that are 35 ft, 50 ft, and 66 ft in diameter. Find the area of each pen. Round to the nearest tenth.

125

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