Google Classroom
Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
APPROXIMATING THE AREA OF A CIRCLE
Author:
Jack D. Gittinger
Topic:
Area
,
Circle
Instructions
So why does the area of a circle equal pi times the radius times the radius? Area = pi X r X r Area = pi X r
2
Experiment with this
GeoGebra
applet to find out.
GeoGebra
New Resources
Regular Star Polygons
Fractal Tétraèdre. Dilatation -1/2 centre triangles
apec
Graph of Slopes of Tangent Lines
Rule of Sarrus - Determinant of a 3×3 Matrix
Discover Resources
Etiquettesquelconques_1
Circle Game
Sattumanvaraisuus
Welcome to 3D GeoGebra!
Angle sum property of triangle
Projection of 3D Lissajous onto 2D gives y = 16x⁵ - 20x³ + 5x
Discover Topics
Geometric Transformations
Prism
Unit Circle
Conic Sections
Sequences and Series