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Q. 47

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Precalculus Enhanced with Graphing Utilities

Found in: Page 528

Book edition 6th

Author(s) Sullivan

Pages 1200 pages

ISBN 9780321795465

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Short Answer

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.

Angle $∠ R P Q = 84 . 74^{\circ} .$

The perpendicular distance from R to PQ is $183.72$ feet long.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1. Given Information

Height of Leaning tower of Pisa is 184.5m high.

The angle of elevation is found to be $60^{\circ}$ at distance of 123 feet from the base of the tower.

We have to find $∠ R P Q$ and the perpendicular distance from R to PQ.

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