Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 13)
What is the relationship between the sides and the angles of a right-angled triangle, as described by Pythagoras and trigonometric ratios?
They are independent of each other
They are directly proportional
The sides are always twice the angle values.
They are inter-related; changing one affects the others.
Giải thích
The sides and angles are interdependent; changing one affects the others.