Math, asked by trypheskater, 1 year ago

what angle will a 5m ladder make with a wall if it reaches 4.2m up the wall?

Answers

Answered by WonderGirl
10
Lets the wall as opposite side of the angle made.

The 5m ladder as hypotenuse.

So, sine theta = 4.2/5

theta = sine^-1 (4.2/5) = 53.18 degrees.

-WonderGirl

Answered by amikkr
7

The angle made will the wall:

  • Length of the ladder = 5 m (hypotenuse)
  • Height at which the ladder reaches the wall = 4.2 m
  • Thus we have to find angle made with the wall:

                 Let the angle be A, therefore;

                                   cosA = adjacent / hypotenuse

                                    cosA = 4.2 / 5

                                     cosA = 0.84 = 34.9 degrees

Therefore angle, A = cos^(-1) 0.84 = 34.9 degrees.

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