Questions

The vertical angle A of an isosceles triangle ΔABC is three times the angle B of it. The measure of the angle A is

A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?

Who wrote the book 'Glimpses of World History'?

Who was the founder of the Indian Reform Association in 1870?

The Westminster parliamentary system was developed in ___________.

Bronze is an alloy of

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

The teacher said, "The Earth revolves around the sun."