The sum of two circles is 80 pi square meters. Find the length of a radius of each circle if one of them is twice as long as the
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Answer:
Step-by-step explanation:
we know that
In the circle of the figure the radius is equal to 2 units
The distance from the center of the circle (origin) to the point A must be same at the radius
so
Applying the formula's distance between two points
point A( 1,y) and point (0,0)
the formula to calculate the distance between two points is equal to
substitute the values
rewrite