This document provides examples of how to calculate the area of different shapes like parallelograms, triangles, trapezoids, and includes word problems asking the reader to calculate areas of rooms and constructions based on given dimensions. It introduces key area formulas and conversion factors between units of measurement. The document is intended to teach calculating area to assist with home improvement projects and estimating material costs.

1. AIM: Area of Polygons
Do Now
1

2. Anticipatory Set
What types of home improvement projects would
you need to know how to find area?
2

3. Parallelogram A = bh h
b
Triangle A = ½bh h
b
b2
Trapezoid A= ½(b1 + b2)h h
b1
3

4. The dimensions of your living room
12 feet
22 feet
Your Material
How much will it cost to buy enough
hardwood flooring for your living room?
4

5. This is your new
apartment. You are
looking to make
some improvements.
5

6. You are going to repaint
all of the ceilings.
27 ft.
23ft
How much will the paint cost?
6

7. 12 ft
You are going to
install bamboo
15 ft
18 ft
flooring in the
living room.
How much will the bamboo flooring cost?
7

8. 11 ft
You are going to put
carpet in the beroom.
13 ft
15 ft.
How much will the carpet cost?
8

9. 1 yard = 3 feet
1 yard =3 feet
1 square yard = 9 square feet
9

10. You are
constructing a
198 in deck with these
dimensions.
480 in.
Covers 384
square feet
How much will the decking cost?
10

11. 1 foot = 12 inches
1 foot = 12 inches
How many square inches
are in one saquare foot?
11

12. BEFORE YOU LEAVE
What other costs will have to be factored that we did not
discuss today?
12

13. Mr. Tjersland's Math 7
Homework: Castle Learning Homework #16 due Thursday
13