Practice Problems on Circle Formulas
P1: Calculate the circumference of a circle having a radius of 10 cm.
P2: Calculate the area of a circle having a diameter of 14 metres.
P3: A circular garden has a radius of six metres. What is the length of an arc with a centre angle of 45∘?
P4: Determine the diameter of an 18-inch pizza. What is the length of a slice of pizza with a central angle of 60∘?
P5: Determine the diameter of a semi-circular arch 8 feet. Calculate the perimeter.
Circle Formulas For Diameter, Area and Circumference
Circle formulas are basic formulas used in geometry to solve various problems of circles and are used in solving various mathematical and other problems. Before moving with various circle formulas one must familiarise with the basic definition of a circle. “A circle is a basic geometrical shape in which all points on the circumference of the circle are equidistant from the centre of the circle.”
In this article, we will learn about various circle formulas their uses and others in detail.
Table of Content
- Circle Formulas
- Parts of a Circle
- What are Circle Formulas?
- Properties of Circle
- List of All Circle Formulas
- Examples on Circle Formulas