Calculate the area of a circle with a diameter of 1.4 cm.
| December 21, 2020 | education
the area of the circle is S = пr ^ 2
find the radius
since the diameter is 1.4, the radius is half the size
1.4: 2 = 0.7cm
find the area of a circle
п= always equal to 3.14
S = (0.7) ^ 2 * п = 1.47 cm ^ 2
answer 1.47
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