1: Since they are the same shape, the angles are the same.
5: To go from the smaller figure to the larger figure, make sure the scale factor you use is bigger than 1.
11: The ratio is the scale factor.
20: Multiply 10 by the scale factor twice, because area is two-dimensional.
28: This is getting smaller, so the scale factor is less than 1.
29: This is getting larger, so the scale factor is more than 1.
30: The angles stay the same, and the sides can be found by multiplying by the appropriate scale factor.
32: This is the same as #28 or #29, depending on which way it is going.
34: Since area is two-dimensional, the scale factor has to be squared.
38: Because they are the same shape, the corresponding angles are the same for both.
45: Can a rhombus have different angle measures than another rhombus?
46: Could two squares be the same shape? Could they be different shapes?
48: Could a right triangle be the same shape as an equilateral triangle? Could they be different shapes?