In a right-angled triangle ABC, angle C is 90. Angle A is 30 and side AB is 12. Find side BC.
| August 15, 2021 | education
The sine of the angle of a right-angled triangle is the ratio of the opposite leg to the hypotenuse.
Sin30 = BC / AB.
BC = AB * Sin30 = 12 * 1/2 = 6 cm.
Answer: The length of the BC leg is 6 cm.
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