Some Applications of Trigonometry
Subject matter experts of JagranJosh have developed a chapter wise practice sets as per the relevancy of the chapter in the board exam. This practice set contains 10 questions with detailed explanations on “Chapter: Some Applications of Trigonometry” of Mathematics.

Q1.From the top of a 20 m high tower, the angle of elevation of the top of a building is 600 and the angle of depression of its foot is 450. What is the height of the building?
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Q2.A tree stands vertically on the ground. From a point on the ground which is 30 m away from the foot of the tree, the angle of elevation of the topmost point of the tree is found to be 450. What is the height of the tree?
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Q3.In a Δ ABC right angled at B, sin A = 1/2, if BC = 6 cm then the value of AC is:
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Q4.If a, b and c are the sides of a right angled triangle such that b < c < a, then which of the following relation is correct?
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Q5.From the top of a cliff 90 m high, the angles of depression of the top and bottom of a tower observed to be 300 and 600 respectively. What is the height of the tower?
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Q6.Two poles of heights 6 m and 11 m stands vertically upright on a plane ground. If the distance between their feet is 12 m, then what is the distance between their tops?
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Q7.The shadow of a tower standing on level ground is found to be 40 m longer when the sun’s altitude becomes 300 and 450. Find the height of the tower.
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