Use formulas to find the areas. Estimate to help.
- Find the total area of 8 rectangular 9. How many 4-in. square tiles are needed
wooden panels if each measures to cover an 8 ft by 16 ft wall?
5.2 cm by 7.6 cm. (Hint: 1 ft^2 144 in.^2 )
Find each missing dimension. Use Guess and Test.
- Area of square: 144 in.^2 13. Area of square: 625 cm^2
Find the length of a side. Find the length of a side.
ss 12 in. 12 in. 144 in.^2 14. Area of rectangle: 276 m 2
s12 in. Width12 m
s
Find the length.
Draw a diagram and use a formula to solve each problem.
13.5 cm
10.3 cm
1 yd^12
1 yd
1
2
7 ft^23
2 ft^12
7 m
2.5 m
2.5 m
2.5 m
1 in.^13
4 in.
113 in.
4 in.
1 in.^13
4 in.
11 ft
12 ft
4 ft
4 ft
9 ft
18 in.
9 in.
12 in.
6 in.
7 in.
8 in.
21 in.
- A rectangular floor is 7.5 ft long. It is
4 times as wide as it is long. How
many square yards of vinyl are
needed to cover this floor? - How many square yards of carpeting
are needed to cover a floor that is 9 ft
wide and 15 ft long? (Hint: 9 ft^2 1 yd^2 )
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