Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 3 - No. 7)
For the area of any triangle, which of the following formulas is/are valid?
1/2 * ab * sinC
1/2 * base * height
a * b * sinC
1/2 * a * b * cosC
Explication
The area can be found by using: 1/2 * ab * sinC and 1/2 * base * height.