Question

The height of a tower is 12 m. What is the length of its shadow when 10 Sun’s altitude is 45°? Solution:​

Answer 1

Let AB be the tower Fig.

Then, ∠C=45°

, AB=12 m

tan45° = AB/BC

= 12/BC

⇒1= 12/BC

⇒BC=12 m

∴ The length of the shadow is 12 m.