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Lena [83]
3 years ago
14

A rectangle has an area of 384 m². The length and the width of the rectangle are changed by a scale factor of 0.75.

Mathematics
2 answers:
12345 [234]3 years ago
8 0
We are tasked to solve for the area of the new rectangle. The formula of solving area of the rectangle is A = width * length

Old triangle Area = 384 m² = w * l
New triangle Area we have:
Area = w * 0.75l
384 m² = w*0.75l
384 / 0.75 = w*l
288 m² = w*l

The answer is 288 m².
PolarNik [594]3 years ago
6 0

Answer:  216\ m^2

Step-by-step explanation:

A rectangle has an area of 384 m².

Let l and w are the length and the width of the original rectangle, such that the area of the rectangle is given by ;-

A=lw=384

The length and the width of the rectangle are changed by a scale factor of 0.75 will be:

l'=0.75l\\\\w'=0.75w

Now, the area of the new rectangle will be :

A=l'w'=0.75l\times0.75w\\\\=(0.75)^2(lw)\\\\=(0.5625)(384)=216\ m^2

Hence, the area of the new rectangle=216\ m^2

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