A rectangle has a a perimeter of 72 ft. The length and width are scaled by a factor 3.5.
2 answers:
Perimeter of a rectangle: P = 2 L + 2 W, P = 72 ft P ( new ) = 2* 3.5 L + 2 * 3.5 W = 3.5 * ( 2 L + 2 W ) = 3.5 P P ( new ) = 3.5 * 72 = 252 ft Answer: The perimeter of the new rectangle is 252 ft.
Answer:
The perimeter of the resulting rectangle is
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its perimeters is equal to the scale factor
Let
z-----> the scale factor
x------> the perimeter of the dilated rectangle
y-----> the perimeter of the original rectangle
so
In this problem we have
substitute and solve for x
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