Solve for the remaining angles and side of the two triangles that can be created. Round to the nearest hundredth:C=30°𝐶=30°, a=4𝑎=4, c=3
Question
Solve for the remaining angles and side of the two triangles that can be created. Round to the nearest hundredth:C=30°𝐶=30°, a=4𝑎=4, c=3
Solution
To solve for the remaining angles and sides of the two triangles, we will use the Law of Sines.
First, let's find angle A using the Law of Sines:
sinA/a = sinC/c
sinA = (a * sinC) / c
sinA = (4 * sin30°) / 3
sinA = (4 * 0.5) / 3
sinA = 2 / 3
A = arcsin(2/3) ≈ 41.81°
Now, let's find angle B:
B = 180° - A - C
B = 180° - 41.81° - 30°
B = 108.19°
Now, let's find side b using the Law of Sines:
b/sinB = a/sinA
b = (a * sinB) / sinA
b = (4 * sin108.19°) / sin41.81°
b ≈ 6.93
So, the first triangle has angles A = 41.81°, B = 108.19°, C = 30° and sides a = 4, b ≈ 6.93, c = 3.
For the second triangle, angle A' = 180° - A = 138.19°. Angle B' = 180° - A' - C = 11.81°. Side b' can be found using the Law of Sines:
b'/sinB' = a/sinA'
b' = (a * sinB') / sinA'
b' = (4 * sin11.81°) / sin138.19°
b' ≈ 1.15
So, the second triangle has angles A' = 138.19°, B' = 11.81°, C = 30° and sides a = 4, b' ≈ 1.15, c = 3.
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