Karnataka Board Solutions for Chapter: Solved Examples, Exercise 9: Exercise 9

Author:Karnataka Board

Karnataka Board Mathematics Solutions for Exercise - Karnataka Board Solutions for Chapter: Solved Examples, Exercise 9: Exercise 9

Attempt the free practice questions on Chapter NA: Solved Examples, Exercise 9: Exercise 9 with hints and solutions to strengthen your understanding. Mathematics 10 : Part II solutions are prepared by Experienced Embibe Experts.

Questions from Karnataka Board Solutions for Chapter: Solved Examples, Exercise 9: Exercise 9 with Hints & Solutions

HARD
10th Karnataka Board
IMPORTANT

A tower stands vertically on the ground. From a point on the ground, which is 15 m away from the foot of the tower, the angle of elevation of the top of the tower is found to be 60°. Find the height of the tower.

HARD
10th Karnataka Board
IMPORTANT

An electrician has to repair an electric fault on a pole of height 5 m. She needs to reach a point 1.3 m below the top of the pole to undertake the repair work. What should be the length of the ladder that she should use which, when inclined at an angle of 60° to the horizontal, would enable her to reach the required position? Also, how far from the foot of the pole should she place the foot of the ladder? (You may take 3=1.73)

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HARD
10th Karnataka Board
IMPORTANT

From a point P on the ground, the angle of elevation of the top of a 10 m tall building is 30°. A flag is hoisted at the top of the building and the angle of elevation of the top of the flagstaff from P is 45°. Find the length of the flagstaff and the distance of the building from the point P. (Take 3=1.732).

HARD
10th Karnataka Board
IMPORTANT

The shadow of a tower standing on level ground is found to be 40 m longer when the Sun’s altitude is 30° than when it is 60°. Find the height of the tower.

HARD
10th Karnataka Board
IMPORTANT

The angles of depression of the top and the bottom of an 8 m tall building from the top of a multi-storied building are 30° and 45°, respectively. Find the height of the multi-storied building and the distance between the two buildings.

HARD
10th Karnataka Board
IMPORTANT

From a point on a bridge across a river, the angles of depression of the banks on opposite sides of the river are 30° and 45°, respectively. If the bridge is at a height of 3 m from the banks, find the width of the river.