Question

Find the area of circle whose diameter is 56cm (Taking π = 3.14)​

Answer 1

Answer:

2461.76

Step-by-step explanation:

area of circle=πr^2

=3.14*(56/2) ^2

=2461.76

Answer 2

Given

• Diameter of the circle = 56 cm

To find

• Area of circle

Solution

Firstly, we will find the radius of the circle. By using formula,

★ Radius = Diameter/2

By substituting the given values, we get :-

⟼ Radius = 56/2

⟼ Radius = 28

Radius of the circle = 28 cm

Now, we have the value of the radius of the circle. So, by using the formula of area of circle, we can find its value.

★ Area of circle = πr²

where,

• π = 3.14
• r = radius of the circle

Substituting the given value, we get :-

⟼ Area of circle = πr²

⟼ Area of circle = 3.14 × 28 × 28

⟼ Area of circle = 3.14 × 784

⟼ Area of circle = 2,461.76

Area of the circle = 2,461.76 cm²

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Know More :-

• Diameter of the circle = 2 × Radius
• Circumference of the circle = 2πr
• Volume of cylinder = πr²h
• Total surface area of cylinder = 2πrh + 2πr²
• Total surface area of cone = πrl + πr²h
• Curved surface area of cone = πrl
• Volume of cone = 1/3 πr²h