Area and Perimeter of 2D: Circle, Triangle Circle A circle is a plane shape with a fixed circumference and circumference. It is defined by the distance...
Area and Perimeter of 2D: Circle, Triangle
Circle
A circle is a plane shape with a fixed circumference and circumference. It is defined by the distance around its perimeter.
The area of a circle is the amount of space inside the circle. It can be calculated using the formula πr², where r is the radius of the circle.
Triangle
A triangle is a plane shape with three vertices and three angles. The perimeter of a triangle is the sum of the lengths of its three sides.
The area of a triangle can be calculated using the formula s(s-a-b), where s is the perimeter and a and b are the lengths of its two sides.
Applications of Area and Perimeter
Circles: Circle area and perimeter are used in various contexts, such as calculating the area of circular objects, designing circles, and finding the distance to a point on a circle.
Triangles: Triangle area and perimeter are used in applications such as calculating the area of triangular structures, finding the length of a missing side of a triangle, and determining if a triangle is right or obtuse