1. joshua has a ladder that is 17 ft long. he wants to lean the ladder against a vertical wall so that the top of the ladder is 16.5 ft above the ground. for safety reasons, he wants the angle the ladder makes with the ground to be no greater than 70°. will the ladder be safe at this height? show your work .

NO, the ladder is too steep.

Step-by-step explanation:

Length of ladder = 17 feet.  This is the hypotenuse.  

 Side a of a right triangle = 16.6    

To answer this, you need one of the trigonometric functions.      Opposite = 16.5    

hypotenuse = 17    

The function you need is the sine function.    

Sin(theta) = opposite / hypotenuse    

sin(theta) = 16.5 / 17    

Sin(theta) = 0.97059    

theta = sin-1(0.07059)    

theta = 76.07  

No the ladder is too steep.

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step-by-step explanation:

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