Question

π x D square / 4 how it comes

Answer 1

Circumference is 2 × π × Radius

The Circumference of a circle or a sphere is equal to 3.1416 times the Diameter.

Circumference=3.1416⋅Diameter

C=π⋅D

Answer 2

Step-by-step explanation:

π×D^2/4

=22/7×D^2/4

=22/7×D/2

D=2×7/22

D=7/11

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