A man is standing 100 m away from a tower. The angle of elevation to the top of the tower is 45°. The height of the tower is:

 In a right-angled triangle, if the adjacent side = 4 and hypotenuse = 5, what is cos θ?

 A vertical wall and ground make an angle of 90°. A ladder is placed making an angle of 60° with the ground. If the ladder is 10 m long, the height it reaches on the wall is: 

 If sin θ = 0.6, then cos θ = ? 

 A pole of height 20 m casts a shadow of length 20√3 m. The angle of elevation of the sun is: 

Which of the following is the correct identity?

 An observer finds the angle of elevation to a tower to be 60°. If the distance from the tower is 50 m, what is the height of the tower? 

 What is the value of sin θ when θ = 0°?

 In triangle ABC, right-angled at B, if AB = 6 and BC = 8, then AC = ?

 The ratio of height to base in a 30° right triangle is:

 sin 30° = ? 

 cos 60° = ?

 tan 45° = ?

 sin 90° = ?

cos 0° = ? 

 tan 0° = ?

 sin²θ + cos²θ = ?

 tan θ = sin θ / ? 

 If sin θ = 3/5, then cos θ = ?

 tan 60° = ?

 A crane raises a load forming a 45° angle with the ground. If the cable is 20 m long, height raised = ?

 A 12 m ramp makes a 30° angle with the floor. Vertical height = ?

 A 10 m ladder makes 60° with ground. Its base is how far from the wall?

 If tan θ = 1, then θ = ?

 A building 50 m tall casts a shadow 50 m long. The sun’s elevation = ?