Given square rstv, where rs= 9cm. if square rstv is dialated by a scale factor of 3 about a given center, what is the perimeter,in centimeters, of the image of rdtc after the dialation? a: 12cm.b: 27cm c: 36cm d: 108cm

D: 108 cm

Step-by-step explanation:

Use your test-taking skill to eliminate the other answers. The perimeter of the given square is (9 cm)×4 = 36 cm. None of the other answers can possibly be correct for a square that is made larger by dilation.

Every linear measure is increased by the dilation factor. If side lengths are multiplied by 3, then the perimeter is multiplied by 3.

... 3×36 cm = 108 cm

Another way to ge there is to realize the side length is multiplied by 3, so in the larger square is 3×9 cm = 27 cm. The perimeter is the the sum of the 4 equal sides, so is ...

... 4×27 cm = 108 cm

Step-by-step explanation:

Given,

Gallon of juice drank in 5 weeks = 4

Therefore,

Gallon of juice drank in 1 week