Corresponding sides of similar triangles are proportional.

Answer 1

True.

Similar triangles have the same shape, but not size.

If one triangle's sides are in a ratio of 3:4:5, then a similar triangle will have sides in the same ratio, 3:4:5

If one triangle has sides 3 feet, 4 feet and 5 feet, another similar triangle may have sides 6 feet, 8 feet, and 10 feet, just a multiple of the other triangle.

Also all angles are the same in any similar triangle.