Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 3 - No. 39)
Which of the following is a correct step to solve a right-angle triangle?
Draw a clearly labelled diagram
Label the sides O, A and H
Decide which ratio you need to use
Solve the equation
Vysvetlenie
All steps are valid and used to solve a right angle triangle.