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what is the formula of area of a circle. You find the area of a semicircle by plugging the given radius of the semicircle into the area of a semicircle formula. We know w 5 and h 3 so.
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It can be determined easily using a formula A pr2 Pi r-squared where r is the radius of the circle. The area formula is. If you know the circumference of a circle you can use a revision of the formula for the area of a circle.
What is the area of this circle.
But where does that formula come from. The unit of area is the square unit such as m2 cm2 etc. Radius r 3. The surface area of circle is 4pr 2.
