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If a rectangle with length 6 cm and width 4 cm is enlarged by a scale factor of ½, then what is the perimeter of the new rectangle?

Respuesta :

The perimeter of the new rectangle  is 23cm

How to determine the perimeter

Formula for perimeter is given by

Perimeter = 2(length  + width)

Perimeter = 2( 6 + 4)

Perimeter = 2 × 10

Perimeter = 20cm

If the length and width are enlarged by 1/2, we have

Perimeter  = 2( 6 + 4 +1/2)

Perimeter = 2( 10 + 0.5)

Perimeter = 2× 11. 5 = 23cm

Thus, the perimeter of the new rectangle  is 23cm

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