Question
Find the odd āletter groupā from the given
alternatives:Solution
The correct answer is C
From a point on the ground, the angle of elevation of the top of a tower is 30Ā°. After moving 20 m closer to the tower in a straight line, the angle of...
The angle of depression from the top of a light-house of two boats are 60Ā° and 30Ā° towards the west, if the two boats are 60m apart, then the height ...
Now a chord of a circle is such that AB = 10 cm. If the diameter of the circle is 20 cm, then the angle subtended by the chord at the center is.
The angle of depression of a point on the ground as seen from the top of a tower, 65 feet high, is 45Ā°. Find the distance of the point on the ground fr...
From the top of a straight pillar 20 meters high, the angle of elevation of the top of a straight tower was 45Ā°. If the tower was 70 meters high, then ...
From the top of an upright pole 30ā3 feet high, the angle of elevation to the top of an upright tower was 60Ā°. If the foot of the pole was 55 feet aw...
From a watch tower of 150 m height, the angles of depression of two cliffs in a horizontal line through the base of the tower are 45Ā° and 30Ā°. Find th...
The angle of elevation of an aeroplane from a point on the ground is 60°. After 20 seconds flight the elevation changes to 30°, if the aeroplane...
The distance between two parallel poles is 65√3 m. The angle of depression of the top of the second pole when seen from the top of first pole is 3...
The length of the shadow of a vertical tower increases by 9 m on horizontal ground when the height of the sun changes from 45° to 30 ° , then fi...
