Solution:
Let MN = 18 m be the banner shaft and its shadow be LM = 9.6 m.
The distance of the highest point of the post, N from the far end, L of the shadow is LN.
In right calculated ∆LMN,
Thus, the necessary distance is 20.4 m
Solution:
Let MN = 18 m be the banner shaft and its shadow be LM = 9.6 m.
The distance of the highest point of the post, N from the far end, L of the shadow is LN.
In right calculated ∆LMN,
Thus, the necessary distance is 20.4 m