Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 7 - No. 35)
Which of the following is/are required to be known in order to solve a right-angled triangle problem?
Two sides
One side and one angle
All the angles
Only one side
説明
You need either two sides or one side and one angle to solve a right-angled triangle problem.