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Sylvia leans a 4-foot broom against the wall. The angle between the bottom of the broom and the floor is 72°. How far up the wall does the broom reach from the floor rounded to the nearest tenth? 12.9 feet 3.8 feet 1.2 feet 0.2 foot

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carlosego
To solve this problem you must apply the proccedure shown below:
 1.You have that the measure of the leans a 4-foot and the angle between the bottom of the broom and the floor is 72°. 
 2. Then, you have:

 Sin(72°)=x/4

 When you solve for x, you obtain the following result:

 4Sin(72°)=x
 x=3.8 feet

 The answer is: 3.8 feet

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