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Start learning 50% faster. Sign in now4 ........................................ 4 Divisibility rule of 11 Take the alternative sum of the digit in the number, read from left to right. If that is divisible by 11, so is the original number. According to question, 4 8 4 4 8 8 8 4 is divisible by 11 = 8
A long metallic cable is stretched from a point P on the ground to the top of a cliff, forming an angle of 30 ° with the horizontal ground. The total l...
The length of the shadow of a vertical tower increases by 8 m on horizontal ground when the height of the sun changes from 45° to 30 ° , then find the...
From the top of a straight pillar 20 meters high, the angle of elevation of the top of a straight tower was 45°. If the tower was 70 meters high, then ...
A pole 6 m high casts a shadow 2√3 m long on the ground. Find the angle of elevation
There is a fire in the building. A man on the top of the building see a Fire brigade van coming towards it. If it takes 8 minutes for the angle of depre...
The distance between two parallel poles is 65√3m. The angle of depression of the top of the second pole when seen from the top of first pole is 30...
The angle of elevation of the top of a building from a point on the ground is 30° and moving 40 meters towards the building it becomes 60°. The ...
Two ships are on opposite sides in front of a lighthouse in such a way that all three of them are in line. The angles of depression of two ships from th...
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.
The angle of elevation of the top of a building from a point on the ground is 30° and moving 40 meters towards the building it becomes 60°. The height...
