Since the circumference is C = πR, where C is the circumference, and R is the radius, we can determine the formula for the perimeter of a semicircle which is: The perimeter of a Semicircle = (πR + 2R) units, or after factoring the R, the
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f(x)= √a2 −x2 f ( x) = a 2 − x 2 is a semi-circle, the center of the semi-circle is at the origin, and the radius is a a where a a is the positive square root of a2. a 2. Look closely at this function.
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The equation of a semicircle with midpoint (,) on the diameter between its endpoints and which is entirely concave from below is y = y 0 + r 2 − ( x − x 0 ) 2 . {\displaystyle y=y_{0}+{\sqrt {r^{2}-(x
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