Question

Diameter of a circle is 10cm Find the area of circle?​

Answer 1

• Radius = d/2 = 10/2 = 5cm
• Area = πr² = 22/7 ×(5)² = 3.14 × 25 = 78.5cm²

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Answer 2

As per given information,

Diameter of Circle is 10 cm.

To find out the Area of circle.

Solution -

As we know that,

Radius is half of diameter.

Radius = $\frac{diameter}{2}$

Radius = $\frac{10}{2}$

Radius = $5$

Radius(r) is 5 cm.

Area of circle = $\pi {r}^{2}$

put the value of r and π

π=3.14

Area of circle = $3.14 \times {5}^{2}$

Square means multiply the given values with itself twice.

square of 5 is 25.

Area of circle = $3.14 \times 25$

Area of circle = $78.5$

Hence,

Area of circle is 78.5 ${cm}^{2}$