Ages 10–11🧮 Mathematics17 verified questions on this shelf

Scale and similar shapes

Solve problems involving similar shapes where the scale factor is known or can be found

Try three questions

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Question 1 of 3

Rectangle ABCD is similar to rectangle WXYZ. The length of side AB is 4 cm and the corresponding side WX is 12 cm. If side YZ of rectangle WXYZ measures 9 cm, what is the length of side CD of rectangle ABCD?

Question 2 of 3

Rectangle A has a length of 7 cm and a width of 3 cm. Rectangle B is similar to Rectangle A and the scale factor from Rectangle A to Rectangle B is 3. What is the length of Rectangle B?

Question 3 of 3

In triangle PQR, the sides are 6 cm, 8 cm, and 10 cm. In triangle XYZ, the side that corresponds to the 6‑cm side is 9 cm, and the side that corresponds to the 8‑cm side is 12 cm. What is the length of the side of triangle XYZ that corresponds to the 10‑cm side of triangle PQR?

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Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.