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Name

Lesson Master

Objective C

Questions on SPUR ObjectivesSee Student Edition pages 511—515 for

1. Find the area of a rectangle with length 8.2 mm and width 19.7 mm.

2. A square has perimeter 30 inches. Find its area.

1 101. 64 rnrnL

a5 Inn

3. A rectangle is twice as long as it is wide. If the width is 12 cm, find the area.

PROPERTIES Objective H4. All of the angles in the figure shown are right angles. Show two different

ways to divide it up in order to calculate the area, and find that area.

12

8 8 86 6

3 3 3 3 Area =

USES Objective KIn 5 and 6, use the given infor ion to convert from one unit to another.

5. 1 yard = 36 inches ea. 1 b. 2 yd2 = asqa

6. 1 meter 3.281 feet a. 1 b. 4.2m 2 æ

7. The Jacobs family is buying carpet for their living room, shown 16 ft

.2

ft2

right. If the carpet they want costs $2.89 per square foot, 12 ftwhat will it cost? 16 ft

10ftlo%u.vq28 ft

Obj ec tive M

O 8. Draw = g, 2), B = 2), (-1, 6),D = (3, 6), E = (3, -1), and F = (-4, -1) and find its area.

x1

9. RECTis a rectangle with R = (1, 2), E = (6, 2), and area = 30Give two different sets of possible coo dinates for C and T.

(9 and C =

and C =

Geometry 449

Answer PasBack to Lesson 8-2

Name

Lesson Master

SKILLS Objective C

Questions on SPUR Objectives

See Student Edition pages 511—515 for objectives.

1. Rectangle ABCD is 25 mm wide and 40 mm long.

a. Find Area(ABCD) in square millimeters.

b. Find Area(ABCD) in square centimeters.

2. Find the area of a square with side length 14 cm.

3. A rectangle has a perimeter of 36 and a side that measures 8.

Find the area of the rectangle.

1000

xo

tov3ca

4. The perimeter of a square is 16s + 24. Find its area'.

= HS+U5. One side of a rectangle measures 82 mm, and its area is 4756 mm2.

a 30 mmFind its perimeter.

Cm6. The area of a square is 324 square centimeters. Find the length of a side.

7. The length of a rectangle is 3 times its width. If i area is

108 square feet, find its dimensions.

Objective H

8. Find the area of the shaded region in the figure at the right. 10

15

9. grid below has squares 1 Cm on a side. Draw a rectangle 2.5 cm by

4.5 cm and refer to your picture to explain why its area is 11.25 cm .

e

8

450 Geometry

Back to Lesson 8-2

Name

8-2B

Objective K

In 10 and 11, use the given information to convert from one unit

to another.

10. 1 mm = 1,000 pm

a. 1 mm2 = 10001000 prn2

11. 1 inch = 2.54 centimeters

a. Ift2 = q a q. 030L.l cm2

b. 0.00034 =

12. The width of a soccer field can vary from about 46 m to about 91 m,

while the length can vary from about 91 m to about 119 m. What is

the range for possible areas of a soccer field?

Q- 168 a 9m

13. Rolls of sod measure 18 in. by 6 ft. How many rolls will be needed

for a football field 53 yd by 120 yd?

14. Amanda wants to install tile on three walls around herbathtub as shown. She wants the tile to reach 4 feet abovethe top of the tub. The tiles she chooses are 6'! on a side.How many tiles does she need to buy? 2 ft

15. At the right is the graph of the polygon MONKEY. Find the

a. perimeter.

b. area.

16. A quadrilateral has vertices (-2, -3), (-2, 5), (4, 5), and (4, -3).o Find the

a. perimeter. b. area.

17. A floor plan for a doll-house living room is shown on the grid atthe right. If the unit of measure is centimeters, find the area 30

of its floor.

1 330 CM

20

10

o

Answer Pa

page 2

2

2

rolls

-10

10 20 30 40 50

Geometry 451