WAEC - Mathematics (2020 - No. 24)
A fence 2.4 m tall, is 10m away from a tree of height 16m. Calculate the angle of elevation of the top of the tree from the top of the fence.
76.11\(^o\)
53.67\(^o\)
52.40\(^o\)
51.32\(^o\)
解释
Tan \(\theta\) = \(\frac{13.6}{10}\)
= tan\(^{-1}\)(1.36)
\(\theta\) = 53.67\(^o\)