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Name:______________________________ Date: ___________________ Period:______ Trigonometry Worksheet The field of mathematics called Trigonometry, is the study of right triangles. 1. The three sides of the triangles are referred to as Hypotenuse, Adjacent, and Opposite. Label each side of each triangle using angle A as your reference. B A 2. A C C C B A Use this triangle to find the sine, cosine, and tangent of angle A. Repeat for angle B. Sine A = 13 Cosine A = Tangent A = A Sine B = 5 B Cosine B = Tangent B = 12 3. B C Use this triangle and what you know about trigonometry to find the missing sides and angles. C A 9 B 62° Page of side AC = side AB = angle A = Name:______________________________ Date: ___________________ Period:______ 4. Use this triangle and what you know about trigonometry to find the missing sides land and angles. B C 16 5 angle B =36° side BC = angle A = A 5. If this airplane is 2000 feet high and uses 24 degree angle of descent (angle A) will it land at the end of the runway which is 5000 feet in front of it? C 2000 ft. B 24˚ B 5000 ft. Page of A