# Calculate the area of a circle whose diameter is 1) 18cm 2) 3.6cm

December 31, 2020 | education

| Decision:

Scr = n * R ^ 2 = (n * D ^ 2) / 4 – the formula is the area of a circle

1) Scr = 3.14 * 18 * 18/4 = 254.34 cm2

2) Scr = 3.14 * 3.6 * 3.6 / 4 = 10.174 cm2

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