The ratio of the width to the length of a rectangle is 3:7. The shorter side is 9 inches long. What is the longer side and also
the area of the rectangle? Please show your work.
2 answers:
shorter side : longer side = 3 : 7
Equate 3 parts tp 9 inches:
3 parts = 9 inches
Find 1 part:
1 part = 9 ÷ 3 = 3 inches
Find 7 parts:
7 parts = 3 x 7 = 21 inches
Area = Length x Width = 21 x 9 = 189 in²
Answer: The longer side is 21in and the area is 189 in²
Take the length of the shortest side divide that by the ratio of the shortest side 9/3 =3
Take that number 3 and multiply it by seven.
3*7=21
The shorter side is 9 inches, and the longer side is 21 inches.
To find the area, multiply 21 by 9.
The area is 189 inches
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