Cosine rule & Pythagoras' Theorem'in kopyası

Author:sevda yüce, shanlee

Drag the RED point to create an non-right angle triangle. How does the COSINE rule extend Pythagoras' theorem to describe non-right angle triangles? (Tick the box to see the Working).

New Resources

רישום חופשי
Congruent Figures
Congruent Sides & Angles in △s: Exploration
Function art 3D - waiting shed
What Do You See?

Discover Resources

Finding the equation of the line.
Lines from point and slope
Mr. Sigis' Angle Bisector
log_0,5(x)
Parabola with vertex at the Origin