A28 ft. ladder leaning against a vertical wall makes an angel of 80 degrees with the ground. how far from the base of the wall is the foot of the ladder?

The ladder is 4.86 foot from the base of the wall .

Step-by-step explanation:

Given as :

The length of the ladder = 28 ft

The ladder makes angle of 80° with the ground

Let The distance of the ladder from the foot of the wall = x ft

Now, From Triangle BAC

Cos angle =

I.e Cos 80° =

Or, 0.1736 =  

Or, x = 0.1736 × 28

∴  x = 4.86 foot

So, The distance of ladder from wall base = x =  4.86 foot

Hence The ladder is 4.86 foot from the base of the wall . Answer

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