Question 58
The original task says that CA/BA remains unchanged in a right-angled triangle and asks for its value. Its choices are A: 0.55; B: 0.6; C: 0.625; D: 0.65; E: 0.675. Only the right angle at A is given; no side length or acute angle is specified. Explain whether a unique choice follows, and give checked examples. AI reconstruction: the diagram’s “90°C” is corrected to an angle of 90°, not a temperature. Treat the sketch as not to scale.
