**What is the area of a circle with a radius of 9 cm?**

**In Euclidean geometry, that a circle is the set of all points on the field in a certain distance, called the RADIUS, from a certain point, called the Center. The circle is an example of a simple closed curve which divides the field into the inside and the outside.**

**What is the area of a circle with a radius of 9 cm?**

*The formula to find the broad circle is as follows.***area = π x r**

^{2}*Description:*

*r = radius*

*π = phi, 22/7 or 3.14*

*If the radius is a multiple of 7 like 7, 14, 21 and then use phi = 22/7*

*If the radius is not a multiple of 7 as 5, 10, 12 and use phi = 3.14***What is the area of a circle with a radius of 9 cm?**

area = π x r

^{2}
area = 3.14 x 9

^{2}
area = 3.14 x 81

area = 254.34

*So, area of a circle with a radius of 9 cm is 254.34 cm*

^{2}.**What is the area of a circle with a radius of 9 cm?**

**254.34 cm**

^{2}
What is the area of a circle with a radius of 9 cm? This is the answer

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Oleh
Matematika Dasar