Question

If the circumference of a circle is 220cm.find it diameter and area.
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Answer 1

Answer:

given,

circumference =220cm

Step-by-step explanation:

c=2×22÷7×r

220=6.28r

or,r=35cm

again

for ,

diameter=2r=70cm

area of circle=22÷7×(35)^2=3850cm^2

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Answer 2

circumference of a circle =

$\pi \times diameter$

220 = 22/7 × x

x=70cm

radius = d/2

= 35cm

area of a circle =

$\pi {r}^{2}$

= 22/7 × 35 × 35

= 22/7 × 1225

=

$3850 {cm}^{2}$

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