Sample Problems on Circumference Formula
Problem 1: Calculate the circumference of a circle having a radius of 24 cm.
Solution:
Given,
The radius of the circle is 24 cm
We have
Circumference = 2Ï€r
= 2 × 3.14 × 24
= 150.72 cm
Hence, the circumference of the circle is 150.72 cm.
Problem 2: Calculate the circumference of a circle having a radius of 25 cm.
Solution:
Given:
The radius of the circle is 25 cm
Circumference = 2Ï€r
C = 2 × 3.14 × 25
C = 157 cm
Hence, the circumference of the circle is 157 cm.
Problem 3: Calculate the circumference of a circle having a radius of 7 cm.
Solution:
Given:
The radius of the circle is 7 cm
Circumference = 2Ï€r
C = 2 × 3.14 × 7
C = 44 cm
Hence, the circumference of the circle is 44 cm.
Problem 4: Calculate the circumference of a circle having a radius of 12 cm.
Solution:
Given:
The radius of the circle is 12 cm
Circumference = 2Ï€r
C = 2 × 3.14 × 12
C = 113.04 cm
Hence, the circumference of the circle is 113.04 cm.
Problem 5: Calculate the circumference of a circle having a radius of 42 cm.
Solution:
Given:
The radius of the circle is 42 cm
Circumference = 2Ï€r
C = 2 × 3.14 × 42
C = 263.76 cm
Hence, the circumference of the circle is 263.76 cm.
Problem 6: If a circle is given having a length of a radius of 14 cm, how the circumference of the circle can be calculated?
Solution:
Circumference = 2Ï€r
= 2 × 3.14 × 14
= 87.92 cm
Hence, the circumference of the circle is 87.92 cm
Circumference Formula
Circumference Formula as the name suggests is the formula for calculating the circumference of a circle and as we know the circumference of a circle is defined as the length of the boundary of the circle. For ease of understanding, Circumference is the perimeter of the circle.
Circumference Formula is given by the product of twice the radius and the constant value π. A circle is a two-dimensional curved figure and a bangle is one of the best examples of the Circle. In this article, we will learn about the Circumference Formula and also learn how to calculate the Circumference of a Circle using Circumference Formula. We will also learn the Circumference Formula for semicircles, spheres, and other 3D objects whose at least one face is circular in nature.
Table of Content
- What is the Circumference Formula?
- Circle Circumference Formula
- Semi Circle Circumference Formula
- Circumference Formula for Some Other Curved Objects
- Sample Problems on Circumference Formula