The sine rule states that in any triangle ABC:
a/sin A = b/sin B = c/sin C
where a, b, and c are the lengths of the sides opposite to angles A, B, and C respectively.
Using the sine rule, we can find the length of side a as follows:
a/sin A = b/sin B
a/sin 29° = 15.8/sin 36°
a = sin 29° × 15.8 / sin 36°
a ≈ 8.47 cm (rounded to two decimal places)
Therefore, the length of side a is approximately 8.47 cm.
The sin rule
In angle ABC,A=29°,B=36°,b=15.8cm.find a. And show working
1 answer
0 answers