Question

A ladder of length 80m leaning against a wall is 4√2 m away from the wall. Then the angle of elavation is

Answer 1

Answer:

Angle of elavation = 45° [ANSWER]

Step-by-step explanation:

GIVEN:

●In a right-angle triangle , we have ,

• ladder = hypotenuse(h) = 8m (given) ;
• wall = perpendiculer(p) = 4(root2) (given) ;

TO FIND:

Angle of elavation = theta (say)

SOLUTION:

We know , the trignometric value of sin(theta) = (p/h)

therefore ,

• sin(theta) = 4(root2)/8
• sin(theta) = root2 /2
• sin(theta) = 1 / root2
• sin(theta) = sin45°
• theta = 45°
• angle of elavation = 45° [ANSWER]