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The circumference of a circle is 30.144 kilometers. What is the circle's area?

الحلّ

The circumference of a circle is 30.144 kilometers. What is the circle's area?

الحلّ

a re a : 72.31 k m^{2}

خطوات الحلّ

Given:

c i rc u m f ere n ce : 30.144 km

Radius given

C i rc u m f ere n ce = 30.144 : r = 4.79756 \dots

Circle Area given

r = 4.79756 \dots : A = 72.30892 \dots

a re a : 72.31 k m^{2}

أمثلة شائعة

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