Properties Of Triangles

Easymathematics

In a triangle ABC, the sine rule is

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a/sin A = b/sin B = c/sin C

a sin A = b sin B = c sin C

sin A + sin B + sin C = 1

a + b + c = 180°

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About This Question

Subject: mathematics
Chapter: trigonometry
Topic: properties of triangles
Difficulty: Easy
Year: 2025

Solution

Correct Answer:

a/sin A = b/sin B = c/sin C

The Law of Sines: Relates the sides of a triangle to the sines of its angles.
Formula: $\frac{a}{s i n A} = \frac{b}{s i n B} = \frac{c}{s i n C} = 2 R$ .
Variable $R$ : $R$ represents the circumradius (radius of the circle passing through all three vertices).
Usage: Excellent for solving triangles when you have a side-angle pair.

This easy difficulty mathematics question is from the chapter trigonometry, covering the topic of properties of triangles. It appeared in the 2025 exam.

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Properties Of Triangles

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Properties Of Triangles

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Solution

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