Name:    Try It Out -- Chapter 11, Lesson 4

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Erica wants to paint her bedroom this summer.  She needs to know how much paint to buy.  The dimensions of her bedroom are 3.0 m ´ 3.7 m.  The room is 2.4 m high. She has a window on one of the smaller walls with dimensions of 1.7 m ´ 1.1 m.  Her door is along one of the longer walls and its dimensions are 0.9 m ´ 2.1 m.

Determine the area of the wall that contains the window.
 a. 7.2 m2 c. 1.87 m2 b. 5.3 m2 d. 9.2 m2

2.

In the problem stated in Question 1, determine the area of the wall that contains the door.
 a. 9.0 m2 c. 7.0 m2 b. 1.9 m2 d. 9.2 m2

3.

In the problem stated in Question 1, determine the total wall surface area that will need to be painted.
 a. 32.2 m2 b. 28.4 m2 c. 34.5 m2

4.

Continuing with the problem stated in Question 1, if one litre of paint covers 13 m2, and Erica needs to do two coats of paint, how many litres of paint should she buy?  (Round to the nearest litre.)
 a. 2 litres c. 4 litres b. 3 litres d. 5 litres

5.

The flag pole at a school needs to have a guy wire attached in order to better support the pole.  The pole is 9.5 m high.  The maintance staff decide that the guy wire should be attached part way down the pole, where the bottom of the flag touches the pole.  If the width of the flag along the pole is 45 cm, how long will the guy wire need to be if the wire is attached to the ground 5 m away from the base of the pole?

Select the correct diagram to model the problem.
 a. b. 6.

In the problem stated in Question 5, determine the height the top of the guy wire is from the ground.
 a. 9.5 m b. 35.5 m c. 9.05 m

7.

Continuing with the problem given in Question 5, select the equation that could be used to find the length of the guy wire, where the variable g represents the length of the guy wire.
 a. 9.052 = g2 + 52 b. g2 = 9.052 + 52 c. g2 = 9.52 + 52

8.

Continuing with the problem given in Question 5, determine the length of the guy wire.
 a. 10.3 m b. 53.5 m c. 14.05 m