The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20 cm
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The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20 cm

[From: ] [author: ] [Date: 12-11-01] [Hit: ]
......
please help me it has to be turned in 30 min

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Let x and y be the sides of smaller one
2(x + y) = 20
x + y = 10
new sides 4x and 4y
new perimeter = 2(4x + 4y)
= 8(x + y) = 80
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