Semicircle facts for kids

Kids Encyclopedia Facts
Semicircle
A semicircle of radius r.

In geometry, a semicircle is a two-dimensional geometric shape that forms half of a circle. Being half of a circle's 360°, the arc of a semicircle always measures 180°. A triangle inscribed in a semicircle is always a right triangle.


Semicircle Facts for Kids. Kiddle Encyclopedia.