Answers

2015-03-08T14:13:45+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
So let the height of the flag staff be h 

and the height of the shadow be x when the sun rays makes a angle 60° with the ground

so let the angle at the instant be Ф 

so tan 60 = h/x ............. i

and tan Ф = h/3x ....... ii

so using i

⇒ h/x = √3

⇒ h/3x = √3/3    (multiplying 3 on divisor of both sides)

⇒ tan Ф = 1/√3                 {since,  tan Ф = h/3x}

⇒ Ф = 30°

so the angle at the instant is 30° ANSWER
1 5 1