If a 10 cm radius wheel rotates through 2 radians how many meters has it rolled?
1 answer:
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Scientific notation means the numbers have to be between 1 and 10, so here is the answer as well as where to move the decimal
From the given picture, we can see that 2 sides are congruen, then the given triangle is an isosceles triangle. In this triangle the base angles are congruent, so we can draw the following picture:
Now, since interior angles of any triangle add up to 180 degrees, we have
By combining similar terms, we get
Then, x is given as
Therefore, the answer is x=90 degrees
