Question

A tree is broken by wind, its upper part touches the ground at a point 10 metre from the foot of the tree and makes an angle of 45° with the ground. Then what is the entire height of the tree?

• A. $15 \ m$
• B. $20 \ m$
• C. $10(1+\sqrt 2)\ m$
• D. $10(1+\frac {\sqrt 3}{2})\ m$

Answer 1

Answer: (C)

$10(1+\sqrt 2)\ m$

Answer 2

The correct option is (C): $10(1+\sqrt 2)\ m$.