Question

# A tree is brokenby wind, itsupper part touches the ground at a point 10 meters from the foot of the tree and makes an angle of 45 with the ground. The entire length of the tree is

A
15m
B
20m
C
10(1+ 2) m
D
10(1+ 3/2) m

Solution

## The correct option is C $$10 (1 +$$ $$\sqrt{2}$$) mAC = 10 = ABBC = BC' = $$\sqrt{(10^2 + 10^2)} = 10\sqrt{2}$$AC = AB + BC = 10 ($$\sqrt{2}$$  +1)Physics

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