Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
IMO 2014/P4 - addendum
Author:
Nikolaos Rapanos
ADOE IS #, K is its center and it also lies on DE; therefore KA = KH = KO, hence OH is perpendicular to AH
GeoGebra
New Resources
Cross Product in 2D and 3D
Construct a Square
Slope Field (1)
Simplifying Radicals: Geometric Thin Slice
Rotating Points (Optical Illusion)
Discover Resources
Triangle Side Lengths and Angles
Define Congruent Segments
รูปคลี่ของพีระมิด
Gradients and Saddles
Сечение пирамиды-ОБЪЕМЫ
Discover Topics
Pie Chart or Circle Chart
Trigonometric Functions
Means
Percentages
Interest Calculation