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Law of Cosines
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Law of Cosines
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13. Non-Right Triangles / Law of Cosines / Problem 1
Problem 1
Find the missing side length and angles of the triangle. Express the lengths to one decimal place and the angle to the nearest degree.
p = 7, r = 3, Q = 40°
A
P = 118°, q = 5.1, R = 22°
B
P = 23°, q = 5.1, R = 117°
C
P = 23°, q = 5.1, R = 17°
D
P = 117°, q = 5.1, R = 23°
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