Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 1 - No. 15)
In order to calculate the area of a triangle, you require...
base & height or 2 sides and the included angle
all sides or all angles
all angles or base and height
all sides or 2 sides and all angles
Explanation
You can find area with base and height or 2 sides and included angle