
Find the circumference of Circle if Diameter = 4 cm.
Answer
494.7k+ views
Hint: To solve this question we need to know the basic definitions and formula related to the circle. As we know Circumference of the circle or perimeter of the circle is the measurement of the boundary of the circle. Whereas the area of the circle defines the region occupied by it. If we open a circle and make a straight line out of it, then its length is the circumference. It is usually measured in units, such as cm or unit m.
Complete step-by-step answer:
Here, we have
Diameter=4 cm
Since the diameter is known to us,
we can calculate the radius of the circle.
Radius =
Radius=2 cm
Circumference =
=2
= 4 cm
Therefore, Circumference of the circle is 4 cm.
Note: Always remember that if Diameter is asked and Circumference of circle is given, then in that case we simply use-
Diameter =
So, the diameter of the circle in terms of circumference will be equal to the ratio of the circumference of the circle and pi.
Complete step-by-step answer:
Here, we have
Diameter=4 cm
Since the diameter is known to us,
we can calculate the radius of the circle.
Radius =
Radius=2 cm

Circumference =
=2
= 4
Therefore, Circumference of the circle is 4
Note: Always remember that if Diameter is asked and Circumference of circle is given, then in that case we simply use-
Diameter =
So, the diameter of the circle in terms of circumference will be equal to the ratio of the circumference of the circle and pi.
Recently Updated Pages
Express the following as a fraction and simplify a class 7 maths CBSE

The length and width of a rectangle are in ratio of class 7 maths CBSE

The ratio of the income to the expenditure of a family class 7 maths CBSE

How do you write 025 million in scientific notatio class 7 maths CBSE

How do you convert 295 meters per second to kilometers class 7 maths CBSE

Write the following in Roman numerals 25819 class 7 maths CBSE

Trending doubts
Convert 200 Million dollars in rupees class 7 maths CBSE

Write a letter to the editor of the national daily class 7 english CBSE

One lakh eight thousand how can we write it in num class 7 maths CBSE

Which country is called the Land of the Morning calm class 7 social science CBSE

When is food a countable noun and when is it an uncountable class 7 english CBSE

The smallest country in terms of area is ABermuda BPeru class 7 social science CBSE
