1.

The height of a tower is 100 m. When the angle of elevation of the sun changes from 30° to 45°, the shadow of the tower becomes x metres less. The value of x is

A. $100\,m$$
B. $100\sqrt 3 \,m$$
C. $100\left( {\sqrt 3- 1} \right)\,m$$
D. $\frac{{100}}{{\sqrt 3 }}\,m$$
Answer» D. $\frac{{100}}{{\sqrt 3 }}\,m$$


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