23.How many ways can you separate
the figure in exercise 23 in order
to find its area? Describe all the
possible ways.
24.A rectangle has an area of 36 ft^2
and a perimeter of 26 ft. What are
the length and width of the rectangle?
Explain how you solved the problem.
Show all your work.
15.Which fraction is closest to^12 ?
a. 191 b. 141 c. 151 d. 181
19.^69 ^13
a. ^89 b.^23 c. 2 d. 1
16.Choose the GCF
of 18 and 27. a. 18
b. 9
c. 6
d. 3
20.How many angles
does a pentagon
have?
a. 4
b. 5
c. 6
d. 8
17.What kind of triangle is shown?
a. right b. isoceles
c. equilateral d. scalene
21.Choose the perimeter.
a. 10 cm b. 16 cm
c. 20 cm d. 16 cm^2
18.Use front-end estimation.
7 ^79 6 ^26
a. about 14 b. about 12
c. about 15 d. not given
22.Tina draws an octagon. Each side
is 11 mm. What is the perimeter?
a. P66 mm b.P19 mm
c. P88 mm d.P55 mm
23.Choose the area and
perimeter of the figure.
a. A30 m^2 ; P26 m
b.A26 m^2 ; P30 m
c. A21 m^2 ; P20 m
d.A9 m^2 ; P18 m
8 cm
2 cm
7 m
6 m
3 m
3 m
3 m
4 m
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