# Pre-Transition 9-2B - Windber Area School District / Overview

```Back to Lesson 9-2
Name
9-2B
0-0X Lesson Master
Questions on SPUR Objectives
See Student Edition pages 578–583 for objectives.
SKILLS Objective A
In 1–6, find the area.
2.
3.
4m
7 in.
12 cm
6m
10 in.
5 cm
4.
20 ft
15 ft
5.
6.
6 in.
45 cm
20 cm
1.
4.5 in.
7. Below are three copies of the same triangle. Find the area of
each.
5
3
4
4
3
5
5
3
4
8. 15 feet, 20 feet, and 25 feet
9. 10 inches, 24 inches, and 26 inches
10. 34 centimeters, 30 centimeters, and 16 centimeters
11. 19.5 inches, 18 inches, and 7.5 inches
456
In 8–11, find the area of a right triangle with the given side lengths.
Pre-Transition Mathematics
SMP_TRPTM_C09_452-482.indd 456
4/24/08 5:30:18 PM
Back to Lesson 9-2
Name
9-2B
page 2
SKILLS Objective J
12. Mr. Hobson teaches kindergarten. He is cutting rectangles from
sheets of construction paper. The rectangles measure 4 inches by
6 inches. He will then cut each rectangle into two identical right
triangles for his students to use as sails on paper sailboats.
a. What is the area of one sail?
b. What are the base length and height of that sail?
c. If he were to use poster board that is 16 inches by
48 inches, how many sails can he cut out that are the
same size as the one described in Part b?
House
25 ft
13. Martha made a triangular garden in front of her house.
The dimensions of the garden are shown.
Garden
alk
tw
on
Fr
16 ft
a. Find the area of the triangular garden.
b. Martha wants to use __14 of the area for some evergreen
bushes. How many square feet will be for evergreens?
c. Three-eighths of the garden will be for lilac bushes.
How many square feet will be for lilacs?
d. The remaining area will be for day lilies and petunias.
How much area is left for these ﬂowers?
14. For a pep rally, the cheerleaders want to make a large pennant
with the dimensions shown. In order to make the pennant, they
will buy a rectangular piece of material with dimensions 10 ft by
24 ft, and then cut away two identical right triangles from the top
and bottom of the right side of the rectangle.
10 ft
24 ft
a. What is the area of the rectangular piece of material?
b. What is the area of the pennant?
c. What are the areas of the two right triangles that
have to be cut away?
Pre-Transition Mathematics
SMP_TRPTM_C09_452-482.indd 457
457
4/24/08 5:30:36 PM
```