Calculate the area of triangle ABC if side AB = 5 cm, AC = 8 cm, angle A is 60 degrees.
| March 26, 2021 | education
If two sides and the angle between them are known for a triangle, then the area of the triangle is calculated by the formula: S = (1/2) * AB * AC * sin (A).
Substitute the values from the condition of the problem and calculate the area S = 0.5 * 5 * 8 * sin (60) = 20 * (1/2) * √ (3) = 10√ 3 = 17.32
Answer: 10√ 3
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