Quiz: 8.7 Quiz (LO5) Time Remaining: 00:17:57 Submit Quiz This Question: 1 pt |
ID: 2919973 • Letter: Q
Question
Quiz: 8.7 Quiz (LO5) Time Remaining: 00:17:57 Submit Quiz This Question: 1 pt | 7 of 7 (2 complete) This Quiz: / pts possible Solve the right triangle ABC, with C 90 A-25.0°, c 13.2 ft In the right triangle ABC, with C-900, B = Simplify your answer. Type an integer or a decimal.) The length of side a is approximatelyft. (Simplify your answer. Type an integer or a decimal. Round to the nearest tenth as needed.) The length of side b is approximately ft. " Simplify your answer. Type an integer or a decimal. Round to the nearest tenth as needed.)Explanation / Answer
C = 90 deg
A = 25 deg
c = 13.2 feet
B = 180 - ( 90 + 25 )
B = 65 degrees
applying sine rule on the triangle
sin 25 = a / 13.2
a = 5.6 ft
applying cos rule on the triangle
cos 25 = b / 13.2
b = 12 feet
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