In the following question, out of the four alternatives, choose the word which best expresses the meaning of the given word and click the buttoncorresponding to it.
In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button correspondingto it.
The angle of elevation of the top of a pillar from the foot and the top of a building 20 m high, are 60° and 30° respectively. The height of the pillar is
A cylinderical container of 32 cm height and 18 cm radius is filled with sand. Now all this sand is used to form a conical heap of sand. If the height of theconical heap is 24 cm, what is the radius of its base?