Question

Use the Law of Cosines to solve the triangle. Round your answers to two decimal places. a = 75.4, b = 52.8, c = 52.8 A = B = C =

          Use the Law of Cosines to solve the triangle. Round your answers to two decimal places.
a = 75.4, b = 52.8, c = 52.8
A =
B =
C =

Added by Jose Ramon C.

Precalculus with Limits

Ron Larson 2nd Edition

Instant Answer

Solved by Expert Teresa Fuston

03/18/2022

Step 1

4, b = 52.8, c = 52.8 Using the Law of Cosines: a^2 = b^2 + c^2 - 2bc * cos(A) 75.4^2 = 52.8^2 + 52.8^2 - 2 * 52.8 * 52.8 * cos(A) 5690.16 = 2788.64 + 2788.64 - 5575.68 * cos(A) 5690.16 = 5577.68 - 5575.68 * cos(A) 112.48 = -5575.68 * cos(A) cos(A) = -112.48 / Show more…

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