- Homework Hints

### 8.3

8: Multiply 8 by 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.

38: Because they are the same shape, the corresponding angles are the same for both.

43: Could two isosceles triangles be the same shape? Could they be different shapes?

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?

50: Will the image be the same shape as the bug itself?

58: The total measures of the angles in a triangle is 180°.