A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm. What will be the perimeter and the a

Question

A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm. What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 4.5? (5 points)

Perimeter = 46 cm, area = 131.25 cm2
Perimeter = 126 cm, area = 972 cm2
Perimeter = 46 cm, area = 972 cm2
Perimeter = 126 cm, area = 131.25 cm2
Perimeter = 46 cm, area = 131.25 cm2
Perimeter = 126 cm, area = 972 cm2
Perimeter = 46 cm, area = 972 cm2
Perimeter = 126 cm, area = 131.25 cm2

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Ngọc Diệp 3 weeks 2021-09-02T06:07:23+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-02T06:08:23+00:00

    Answer:

    Perimeter = 126cm

    Area = 972cm^2

    Step-by-step explanation:

    6*4.5 = 27

    8*4.5 = 36

    Perimeter = 27*2+36*2= 126 cm

    Area = 27*36 = 972 cm^2

    Hope this helped!

    0
    2021-09-02T06:08:38+00:00

    Answer:

    Perimeter = 126 cm, area = 972 cm2

    Step-by-step explanation:

    Rectangle perimeter:

    • P = 2(w + l)

    Rectangle area:

    • A = wl

    When scaled, the perimeter will change by same factor but the area by the square of same factor.

    Applying to the given rectangle

    Perimeter:

    • P = 2(6 + 8)(4.5) = 126 cm

    Area:

    • A = 6*8*4.5² = 972 cm²

    Correct choice is B

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