Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 1 - No. 48)
Which one of the following can't be used to determine the area of a triangle?
1/2absinC
base * height
a^2 + b^2
0.5 * b * h
解释
a^2 + b^2 is used in Pythagorean theorem to calculate side lengths