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CBSE Class 10 Answered

Height & Distance
Asked by monikas | 07 Oct, 2008, 02:17: PM
answered-by-expert Expert Answer

 

 

In triangle ABE , BE = 80m (given)

AB=  80 m (Triangle ABE is isosceles , becuse one angle is 90 deg and one is 45 deg)

In triangle DAC Dc = 80 m

tan 30 = DC/ AC

AC = 803

So ED = 80 - 803= 80  x .732= 58.56 m

In 2 sec the bird travels 58.56 m

In 1 sec it will travel 29.28 m

Answered by | 07 Oct, 2008, 02:37: PM

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