Question
A man 3 m tall is 19 m away from a tower 22 m high.
Determine the angle of elevation of the top of the tower from the eye of the observer.Solution
In △ CDE, tan θ = CD/CE = (BD - BC)/CE = (22 - 3)/ 19 = 19/19 tan θ = 1 = tan 45 °  θ = 45 °
In each sentence below, four words are given in bold. One of them may be incorrectly spelt. Identify the incorrectly spelt word. If all are correct, ch...
Select the most appropriate antonym of the bold word.
He was reluctant to leave the village for the job he liked the most.
Find a word that is the synonym of impoverished
BlitheÂ
Stringent
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A written law that is formally created by a government
Select the wrongly spelt word.
Choose the word that means the same as the given word.
Quandary
15. Vivacious
...