O ADDITIONAL TOPICS IN TRIGONOMETRY Max Solving a word problem uting the law of sines Español A pilot is flying over the ocean. She determines that the angles of depression to two ships are 74° and 50°, as shown in the figure below. The plane is 5 miles from the ship located at point A. How far apart are the ships? Round your answer to the nearest tenth of a mile. 50° 740 miles 5 mi ? Аа А B X
Angles in Circles
Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made perpendicular to the radius through its endpoint placed on the circle as well as the line drawn at right angles to a tangent across the point of contact when the circle passes through the center of the circle. The chord is a line segment with its endpoints on the circle. A secant line or secant is the infinite extension of the chord.
Arcs in Circles
A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.
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