person76
15.07.2019 •
Mathematics
Hokiris ladder has two legs that are each 8 feet long. when the ladder is opened safely and locked for use, the legs are 4 feet apart on the ground. what is the angle that is formed at the top of the ladder where the legs meet
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Ответ:
To solve this problem you must apply the proccedure shown below:
1- The ladder forms an isosceles triangle, because it has two equal sides.
2- Let's call the angle
. To calculate it , you can divide the triangle into two equal right triangles and the angle 
will be divided into two equal parts too. Therefore, you can calculate the half of the angle and then multiply it by two, as following:
The answer is:
Ответ: