Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 6 - No. 24)
How does the formula for the area of a triangle based on sine relate to the area of a right-angled triangle?
They are unrelated.
The sine formula is only valid for right-angled triangles.
The sine formula can be used for right triangles using the 90-degree angle.
The sine formula cannot be used for right triangles.
توضیح
The sine formula works for right-angled triangles, where sin(90) = 1.