The ladder

The ladder touch on a wall at a height of 7.5 m. The angle of the inclination of the ladder is 76°. How far is the lower end of the ladder from the wall?

Correct result:

b =  2.0096 m

Solution:

a=7.5 m A=75∘  tan⁡A=ab  b=atan⁡A∘=atan⁡75∘ =7.5tan⁡75∘ =7.53.732051=2.01=2.0096 m

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