Enlarging objects

12 questions

1. Scale factor is the ___ between similar shapes that describes how large one shape is compared to the other.
2. The invariant point from which an object is enlarged is known as the _________________.
3. P has been enlarged to create A. What is the scale factor?
4. P has been enlarged to create A. What is the value of a?
5. P has been enlarged to create B. What is the scale factor?
6. P has been enlarged to create B. What is the value of $b$$?
7. Which of these is NOT a method for enlarging an object?
8. When enlarging, an image and object can overlap.
9. The shape is being enlarged by a scale factor of 1\over2. The centre of enlargement is marked with a cross. What are the new coordinates of B?
10. When using lines to check the position of the image, the lines must
11. When enlarging by a non-integer scale factor, the image is always smaller than the object.
12. Jun is enlarging an object by a scale factor of 2{1\over2}. If one of the object's lengths is 5, what will the corresponding length be in the image?

License: OGL