Question 1
A rectangle is 7 cm long and its perimeter is 40 cm. How wide is it?
Form an equation to find a side length from a perimeter or an area
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Question 2
A rectangle is 17 cm long and its perimeter is 44 cm. How wide is it?
Question 3
A triangle has a base of 6 cm and an area of 21 cm². How tall is it?
Topic quiz
Five questions on this topic, marked at the end. No hints and no answers along the way — that is what makes the result mean something.
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