Instructional Video

Khan Academy: Triangles: Proof: Triangle Altitudes Are Concurrent (Orthocenter)

Curated by ACT

Demostrates how to take any triangle and make it become the medial triangle of a larger triangle. Also explains that the three altitudes of a triangle are concurrent. [10:01]

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CCSS: Designed
Additional Tags
altitude of a triangle, informal proof, medial triangle, points of concurrency, prove theorems about triangles, ccss.math, hsg-co.c.10, khan academy, khan academy: triangles: proof: triangle altitudes are concurrent (orthocenter) hsg-co.c.10, points of concurrency in triangles
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Resource Details
Grade
9th - 10th
Subjects
Math
2 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L
Common Core
HSG-CO.C.10