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Magazine Problem 13
A straight road leads from an ocean beach into the nearby hills. The road has a constant upward grade of \(3^{\circ} .\) After taking this road for one mile, how high above sea level (in feet) are you?(GRAPH CAN'T COPY)
Problem 14
Directions: Standard notation for triangle \(A B C\) is used throughout. Use a calculator and round off your answers to one decimal place at the end of the computation. Solve the triangle ABC under the given conditions. $$a=6.8, b=12.4, c=15.1$$
Problem 14
Solve the triangle. The Law of Cosines may be needed. $$a=9, b=14, B=95^{\circ}$$
Problem 15
Solve the triangle. The Law of Cosines may be needed. $$b=12, c=10, C=56^{\circ}$$
Problem 15
Directions: Standard notation for triangle \(A B C\) is used throughout. Use a calculator and round off your answers to one decimal place at the end of the computation. Solve the triangle ABC under the given conditions. $$a=12, b=16.5, c=20.6$$
Problem 16
Solve the triangle. The Law of Cosines may be needed. $$a=12.4, c=6.2, A=72^{\circ}$$
Problem 16
A wire from the top of a TV tower to the ground makes an angle of \(49.5^{\circ}\) with the ground and touches ground 225 feet from the base of the tower. How high is the tower?
Problem 16
Directions: Standard notation for triangle \(A B C\) is used throughout. Use a calculator and round off your answers to one decimal place at the end of the computation. Solve the triangle ABC under the given conditions. $$a=5.7, b=20.4, c=16.8$$
Problem 17
Find the angles of the triangle whose vertices are (0,0) (5,-2),(1,-4)
Problem 18
The Seattle Space Needle casts a 225 -foot-long shadow. If the angle of elevation from the tip of the shadow to the top of the Space Needle is \(69.6^{\circ},\) how high is the Space Needle?
