properties of reflection symmetry definition in math

Some of the real-life examples of a semicircle are the shape of a protractor, the shape of a round paper folded in half, etc. We can create two semi-circles from any circle. It is a 2D shape formed when a circle is cut into two equal parts.

The area of a semicircle is half of the area of the circle.įAQs on Semicircle What is the Definition of a Semicircle?Ī semicircle is half of a circle.

The diameter of the circle and the two semicircles formed out of it are the same.

A semicircle has one curved edge which is its circumference and 1 straight edge which is called its diameter.

It is not a polygon since it has a curved edge.

Listed below are a few important properties of a semicircle that makes it a unique shape in geometry: Now, let us look at some important properties of a semicircle. Here, point J is the center, and PJ and JQ are the radii of the semicircle.

The image below represents a semicircle PQR along with the arc and the diameter (PQ) with both endpoints. It is the most common shape we find in real life, for example, the shape of the protractor, speedometer, taco, and so on. Since the semicircle is the half of a circle which is 360°, hence the arc of the semicircle always measures 180°.ĭefinition of a Semicircle: When an arc of a circle with its endpoints on the diameter cuts a circle into two equal halves, those halves are called semicircles. There is one line of symmetry in the semicircle that is considered as the reflection symmetry. A semicircle can also be referred to as a half-disk and it represents a circular paper plate folded into halves.

$properties of reflection symmetry definition in math$

If a circle is cut into half along the diameter, that half-circle is called a semicircle.

Properties of reflection symmetry definition in math