Question

If the radius of a circle is 7 cm calculate its area​

Answer 1

Answer:

43.96

Step-by-step explanation:

7 cm x 2 = 14

14 x 3.14 = 43.96

Answer 2

According to the question:

• As per given in the question,radius of a circle is given 7cm and we are said to find area of a circle.

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Given:

• Radius = 7cm

To Find:

• Area of the circle = ?

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Therefore,

Using Formula:

$\: \: \sf \: area \: of \: circle = \pi \: {r}^{2}$

where (π = 22/7)

Now substitute the known values

$\: \: \sf \: area \: of \: circle = \frac{22}{ \cancel7} \times \cancel 7 \times 7 \\ \\ \: \: \sf = 154 \: {cm}^{2}$

$\therefore$

Hence, Area of the circle is 154cm^2.

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Extra Info....

• Circumference of the circle = 2πr
• Radius of the circle = Diameter/2
• Diameter of the circle = 2 × radius