These Year 9 similarity and enlargement multiple choice questions check your understanding of similarity and enlargement with 10 questions for pupils aged 13-14. Each question has four answers, and the right one is explained as soon as you choose.
Year 9 similarity and enlargement multiple choice questions: the 10 questions
A shape is enlarged with scale factor 3. A side of 5 cm becomes:
Two similar shapes have sides 8 cm and 12 cm. The scale factor from small to large is:
Which is NOT needed to describe an enlargement?
Which condition proves two triangles congruent?
A scale factor of 1/2 makes a shape:
In an enlargement of scale factor 2, angles are:
Rectangles 2Γ3 and 4Γ6 are:
A model car is 1 : 20 scale and is 20 cm long. The real car is:
Enlarging (3, 2) with scale factor 4, centre the origin, gives:
The perimeter of a shape is 20 cm. After enlargement with scale factor 3 it is:
How to use these Year 9 similarity and enlargement multiple choice questions
First, read each question carefully before you look at the four answers. Then work the answer out on paper, so that you do not simply guess. After that, read the explanation, even when you are right. If you score less than 7 out of 10, go back to the similarity and enlargement lesson.
Finally, practise more with the similarity and enlargement worksheet and the quiz. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.


















