Question

Refer to the figure given. What is the length of the shadow that is formed by the stick AB?

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Answer 1

BC is the shadow.

In ΔABC, tan${45}^{\circ }$ = $\frac{AB}{BC}$

$\Rightarrow$ $\frac{AB}{BC}$ = 1

$\Rightarrow$ BC = 30 cm

So, the length of shawdow is 30 cm.