Sunday, August 29, 2010

Enjoy learning math

Introduction to diameter of a circumference:

Its deals with the diameter and the circumference and the problem related to it.

Definition of diameter:

Diameter is the line which is longest in the circle that passes through the center of the circle. Diameter of the circle is 2 times of the radius of the circle.

Circumference:

Circumference is known as the distance around the circle.

Both are measured in the units (diameter and the circumference) (like cm, m) etc.

Do you know what is diameter of a circle ....?

When there is diameter of the circle is given, the formula to find the circumference of the circle is

Hence units = Circumference of the circle

d is the diameter of the circle.

The value of is 3.14








Example :

  1. When the diameter is 10 cm ,find the circumference of the circle

Solution:

Diameter of the circle is 10cm

Circumference of the circle is pi*d units Take a Step Forward to math

= (3.14)*10

= 31.4 cm.

Circumference of the circle is 31.4 c

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