Chapter 8: Q. 62 (page 536)
Write down your strategy for solving an oblique triangle.
Strategy for solving an oblique triangle.
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Great Pyramid of Cheops One of the original Seven Wonders of the World, the Great Pyramid of Cheops was built about 2580 bc. Its original height was 480 feet 11 inches,
but owing to the loss of its topmost stones, it is now shorter. Find the current height of the Great Pyramid using the information given in the illustration.
Area of a Segment Find the area of the segment of a circle whose radius is 5 inches, formed by a central angle of .
The displacement d (in meters) of an object at time t (in seconds) is given
(a) Describe the motion of the object.
(b) What is the maximum displacement from its resting position?
(c) What is the time required for one oscillation?
(d) What is the frequency?
Rework Problem 8 under the same conditions except that, at time t = 0, the object is at its resting position and moving down.
Finding the Lean of the Leaning Tower of Pisa The famous Leaning Tower of Pisa was originally 184.5 feet high.* At a distance of 123 feet from the base of the tower, the angle
of elevation to the top of the tower is found to be 60°. Find RPQ indicated in the figure. Also, find the perpendicular distance from R to PQ.
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