Question

4. The area of a circle of diameter 'd' is

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Answer 1

Answer:

The formula for calculating the area of a circle is A = π​r​2 where pi (π) equals 3.14 and the radius (​r​) is half the diameter.

Step-by-step explanation:

The formula for calculating the area of a circle is A = π​r​2 where pi (π) equals 3.14 and the radius (​r​) is half the diameter.

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Answer 2

Answer:

1.57d²/2

Step-by-step explanation:

diameter = d

so radius = d/2

we know that area of circle = πr²

so area of circle with radius d/2 = π×d/2×d/2

=3.14×(d/2)²

=1.57d²/2

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