Question

find the area of a circle whose diameter is 12.6 cm. answer with solution

Answer 1

Heya...
Here is your answer --

Diameter = 12.6 cm
Radius = Diameter/2 (half)
Radius = 12.6/2
Radius = 6.3

Area of circle = π × r^2
Area = 22/7 × (6.3)^2
Area = 22/7 × 39.69
Area = 22 × 5.67 (39.79÷7)
Area = 124.74 cm^2

HOPE IT HELPS...!!
Glad to help.

Answer 2

The area of a circle is 124.6cm².

Given:

The diameter of the circle is 12.6 cm.

To Find:

The area of a circle.

Solution:

To find the area of the circle we will follow the following steps:

As we know,

The formula for the area of the circle = π r².

Here, r is the radius of the circle.

r is the half of diameter.

So,

Radius =

$\frac{diameter}{2} = \frac{12.6}{2} = 6.3cm$

Now,

Area of the circle = π× (6.3)² = 3.14 × 6.3 × 6.3 = 124.6cm².

Henceforth, the area of the circle is 124.6cm².

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