The area of a circle is pi times radius times radius.
6 cm = 2 times 3 cm
radius = 3 cm.
SO, pi times 3 cm times 3 cm
9 pi
pi is approximately 3.141592...
9 times 3.141592... is 28.274328...
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A ≈ 28.27cm2
A cylinder with a height of 7cm and a diameter of 6cm has a surface area of 188.5cm2
The exact area = pi*32 or 9*pi square cm
Oh, what a happy little question! To find the area of a square, you simply multiply the length of one side by itself. In this case, with each side being 6cm long, you would multiply 6cm by 6cm to get an area of 36 square centimeters. Isn't that just delightful?
113.1 cm3
A ≈ 28.27cm2
The area is 28.274 cm2
The circumference of a circle with a diameter of 6cm is about 18.85cm
A cylinder with a height of 7cm and a diameter of 6cm has a surface area of 188.5cm2
A sphere with a diameter of 6cm has a volume of 113.1 cm3
The exact area = pi*32 or 9*pi square cm
Area of a circle = (pi) R2 = (pi) x (1/2 of the diameter)2 = 9 pi = 28.27 cm2 (rounded)
12 cm.
113.1 cm3
12 cm
The diameter of circle A is 12cm so its radius must be 6cm.
radius=1/2 diameter so R=3cm