Question 7
A large rectangle is divided into four smaller rectangles. Three of their areas are shown in the diagram. What is the perimeter of the shaded rectangle, in centimetres? Explain your reasoning.
Clarification: No side length or further shape condition is supplied in the original question. Decide whether the perimeter can be uniquely determined from the given information.
Clarification: No side length or further shape condition is supplied in the original question. Decide whether the perimeter can be uniquely determined from the given information.