Area of a Triangle

Students are asked to reason about the area of a triangle formula. When one vertex is moved on segment parallel to the base, the area remains constant. Can you write a proof to justify why this is true?
View Activity View Activity

 

knwilson —

 
Resource Type
Activity
Tags
altitude  area  deductive  inductive  parallel  proof  reasoning  triangle  vertex 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.2
Views
2056
Contact author of resource
License
CC-BY-SA, GeoGebra Terms of Use
Derived Resources
Area of a Triangle
Shared by mathstutorrichmond
 

Books

 
© 2025 International GeoGebra Institute