Question

I am confused in daimeter circum.....and perimeter explan me please. May Allah bless you.

Answer 1

• Is there is any difference between two ?

There is no difference between circumference of circle and perimeter of circle.

• What is perimeter ?

A perimeter is the total measurement of all sides of a polygon.

• What is circumference ?

Circumfrence is the total measurement of the boundary of the circle.

• But why do they have separate names?

Its because a circle don't a side. Whereas a perimeter is the sum of all sides of a polygon. so we need to introduce a different term for a normal polygon and a circle.

Answer 2

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★ DIAMETER : The distance from one point on a circle through the center to another point on the circle.

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \sf d = 2r$

★ CIRCUMFERENCE : It is defined for the circle . Basically Circumference the outer boundary of circle ( say just like perimeter in other polygons ) .

$\:\:\:\:\:\: \sf Circumference = 2πr$

★ PERIMETER : The perimeter is the distance around the object Or say outer lining or boundary of an polygon .

Some formulas -

$\:\:\:\:\:\: \sf Square = 4 \times side$

$\:\:\:\:\:\: \sf Rectangle = 2(l+b)$

$\:\:\:\:\:\: \sf Triangle = Sum\:of\:all\:the\:sides$