Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 14)
When calculating the area of a triangle, what information do you need?
The perpendicular height and base
The lengths of two sides and the included angle
All three angles
The lengths of all three sides
Explanation
To calculate the area, you can use the perpendicular height and the base, or two sides with an included angle.
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