APPLICATION OF TRIGONOMETRY

Front

If the length of the shadow of a tower is increasing, then the angle of elevation of the sun is also increasing.

Back

FALSE

Front

In a right triangle, if two acute angles are equal then the length of hypotenuse is √2 times the length of each side.

Back

TRUE

Front

In a right triangle, one side other than the hypotenuse is 8 cm and an acute angle is 45°. What is the length of the hypotenuse?

Back

8√2 cm

Front

In a right triangle, hypotenuse is 10 cm long and an acute angle is 30°. What is the length of the side opposite to this angle?

Back

5 cm

Front

Length of shadow of a 4 m high pole when sun elevation is 60°

Back

4⁄√3 m 

Front

The ratio of the length of the pole and its shadow is 1 : √3.  The angle of elevation of the sun is ____

Back

30°

Front

Back

30°

Front

Back

10 cm

Front

The angle of elevation of the top of a tower is 30°. If the height of the tower is doubled, what will be the angle of elevation of the top?

Back

No change: 30°

Front

If both the height of the pole and the distance of the point of observation from the foot are increased by the same length, does the angle of elevation of its top remain unchanged?

Back

FALSE