Question

A rectangle has a width of 4 inches and a length of 6 inches.A similar rectangle has a width of 12 inches.What is the length of the similar rectangle?

Answer 1

You can set up fractions so you can do width as the numerator or the denominator, it doesn't matter. So 4/6 = 12/x, then you can cross multiply and divide so 6(12)= 72 then divided by 4 is 18 so the length of the similar triangle is 18 inches.

Answer 2

i would say 18 because if they are similar they would need to have the same starting point so if the first was multiplied than so should the second.