12-11-2014
Mathematics

Answered

A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Find the angle formed between the ladder and the ground.

Answer :

superkoopasirf superkoopasirf

12-11-2014

Treat this situation as a right-angled triangle. I have attached a picture below.

cos θ = [tex] \frac{4}{7} [/tex]

⇒ θ = [tex]\cos^{-1}\frac{4}{7} [/tex]
= 55° 2s.f.

View image superkoopasirf

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