Question 25
The diagram contains five congruent right triangles. What is the area of the shaded part in square centimetres?
Source correction: The printed key D assumes right isosceles triangles, a hypothesis missing from the wording and equal-length markings. Under the literal stated conditions, the answer is E. The solution explains both interpretations.
Source correction: The printed key D assumes right isosceles triangles, a hypothesis missing from the wording and equal-length markings. Under the literal stated conditions, the answer is E. The solution explains both interpretations.