Page 126 - Math Course 1 (Book 2)

Geometric Area: Parallelogram

To f nd the number of square yards of grass needed,
f nd the number of square yards of the entire lawn Your Turn!
and subtract the number of square yards where
grass will not be needed. Grass will not be needed Perimeter and Area of a Parallelogram
for the vegetable garden, the garage, or the house
and walkways. A. Find the perimeter of ▱DEFG.
200 ft A. 48 m
B. 45.2 m
C. 96 m
vegetable 40 ft
garden D. 90.4 m

50 ft
grass
150 ft 50 ft 100 ft

Answer
house and
60 ft garage
walkways

Entire lawn: b = 200 ft, h = 150 ft B. Find the area of ▱DEFG
Vegetable Garden: b = 50 ft, h = 40 ft A. 18.2 m 2
Garage: b= 50 ft, h = 60 ft B. 381.9 m 2
House and Walkways: b= 100 ft, h = 60 ft C. 567 m 2
D. 491.0 m 2
Area

Answer
Vegetable House and
Entire Lawn Garden Garage Walkways
Real World Example

A = bh A = bh A = bh A = bh
The Wagners are planning to put hardwood f oors
in their dining room, living room, and kitchen. Find
the number of square yards of wood needed. To the
= 200 • 150 = 50 • 40 = 50 • 60 = 100 • 60 nearest whole number.

= 30,000 ft 2 = 2000 ft 2 = 3000 ft 2 = 6000 ft 2

The total area is 30,000 – 2000 – 3000 – 6000 or
19,000 square feet. There are 9 square feet in one
square yard, so divide by 9 to convert from square
feet to square yards.

A. 106 yd 2
B. 317 yd 2
C. 133 yd 2
They will need about 2111
Answer D. 122 yd 2
square yards of sod.
Answer

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