The area of a circle whose circumference is given as 12cm is approximately
- 3.8 cm^2.
- 11.5 cm^2.
- 38 cm^2.
Explanation from PART66Online
From circumference C = 2(pi)r, the radius is 12/(2pi) = 1.91 cm. The area is (pi)r^2 = pi x 1.91^2, which is approximately 11.5 cm2.
T
ta2x asked · 23 Oct 2018
how to solve? I get 36cm2
Community Comments (2)
A
alhaid0038
25 Sep 2019
I’m also getting 36
A
Alessio990
10 Jan 2020
Because you have a circumference. From this you get the diamter 12/3.14=3.8
after this you get the radius 3.8/2=1.91. Finally you use the formula of the area r^2*3.14 so 1.91^2*3.14 is aproximatelly 11.3 cm^2.
after this you get the radius 3.8/2=1.91. Finally you use the formula of the area r^2*3.14 so 1.91^2*3.14 is aproximatelly 11.3 cm^2.
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