DO NOT use the Sine Rule or Cosine Rule to answer this.  Use right-angled triangle trigonometry only.   A building casts a 20 meter shadow. The line between the top of the buiding and the end of the shadow makes an angle of  π3 radians with the building. Find the height of the building correct to 2 decimal places.         The height of the building is:    metres.

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter6: Equations
Section6.1: Solving Trigonometric Equations
Problem 93PS: Find the angle of elevation of a rifle barrel, if a bullet fired at 1,500 feet per second takes 2...
Question

DO NOT use the Sine Rule or Cosine Rule to answer this.  Use right-angled triangle trigonometry only.

 

A building casts a 20 meter shadow.

The line between the top of the buiding and the end of the shadow makes an angle of  π3 radians with the building.

Find the height of the building correct to 2 decimal places.

 

 

 

 

The height of the building is:    metres.

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