Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 1 - No. 20)
Which of the following is always true for the Law of Sines?
The longest side is always opposite the largest angle.
The area of a triangle is half the product of two sides and the sine of the included angle.
All angles in a triangle are acute.
The sum of any two sides must be greater than the third side.
解释
In a triangle, the longest side is opposite the largest angle, and vice versa.