3 years ago

A 29 foot ladder leans against a building so that the angle between the ground and the ladder is 77º. How

Mathematics

1 answer:

Dimas [21]3 years ago

7 0

Answer:

5 √ 10 + 2 √ 5 ft high

Step-by-step explanation:Explanation:

Let h be the height to which latter of length of 20 ft reach then using Sine formula in right triangle with hypotenuse 20 & vertical leg h & opposite acute angle 0 = 72∘ sin θ =h 20 sin 72∘= h 20

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