Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 22)
In the context of finding the height of a triangular prism, what is the initial step?
Use the sine rule.
Use the cosine rule.
Form a right-angled triangle.
Measure the angles.
คำอธิบาย
The initial step is to identify/form a right-angled triangle.