Question

A pole of height 20 $ft$ has a shadow of length 11.55 $ft$ at a particular instant of time. Find the angle of elevation $(in$degree) of the sun at this point of time.

• A. ${90}^{\circ }$
• B. ${60}^{\circ }$
• C. ${30}^{\circ }$
• D. ${45}^{\circ }$

Answer 1

The correct option is B ${60}^{\circ }$

Height of tower $20ft$

Length of shadow $11.55$

Angle is given as $\tan \theta =\frac{20}{11.55}=1.73\theta \sim {60}^{\circ }$