Natalia constructed a right triangle with two side lengths measuring 3 and 5 units. She constructed a second right triangle similar to the first one, with the two corresponding sides measuring 5.1 and x units in length, respectively.

Question

What is the missing length, x, of the second triangle?

Answer 1

since the ratio of the sides remains the same,

x/5 = 5.1/3

Answer 2

8.5