It is that the angle has to be formed by two pairs of congruent/corresponding sides of the triangle
Answer:
Step-by-step explanation:
Use the trigonometry formula
You are given that
Substitute into the first formula
Angle 
is acute angle, then the sine of this angle is positive and
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Answer:
49,850.64
Step-by-step explanation:
To find the area of a circle, you must use the formula pi r ^2 (pi r squared).
In this case, we are using 3.14 for pi, so we can add that into the formula.
3.1r^2
We also know the radius, so we can add that in too.
3.14 x 126 ^2
Now solve.
126^2 = 15,876
15,876 x 3.14 = 49,850.64
49,850.64 is the answer.
Hope this helped!
