Questions

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

If sin 30° + cos 45° = X, then the value of X.

From the given alternative words, select the word which cannot be formed using the letters of the given word.

ENCYCLOPEDIA

Who took over as the new CEO of IT giant Infosys at the beginning of 2018?

Two circles of same radius intersect each other at P and Q. If the length of the common chord is 30 cm and distance between the centres of the two circlesis 40 cm, then what is the radius (in cm) of the circles?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select theappropriate option. If a sentence is free from error, select 'No Error'.

I seen (1)/ that it (2)/ is getting dark. (3)/ No error (4)

What did Edward Jenner pioneer?

The centre of the reflecting surface of a spherical mirror is called the