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AbbyR9138
15.07.2019 •
Mathematics
If you place a 45-foot ladder against the top of a 36-foot building, how many feet will the bottom of the ladder be from the bottom of the building? using pythagorean theorem
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Ответ:
Ответ:
We can find r
Step-by-step explanation:
The law of sine also known as the sine rule, stipulates that the ratio of the length of a side of a triangle and the sine of the angle facing that side is a constant for all the sides of the triangle.
Mathematically, what this means is that;
r/Sin R = q/Sin Q = s/Sin S
Now, for this question, what do we have?
we have angle Q and the side facing it q
We also have angle R.
So the side we can find from here using the sine rule is no other than the side r.
We can find the length of side r from the triangle using the sine rule
And thus we have something like;
9.5/Sine 18 = r/Sine 135