Perpendicular Intersections 2

Directions

In the picture Angle ADC and Angle BDC are congruent. What other details do we know about Angle ADC and Angle BDC? What relationship does Line AB and Line DC have?

New Resources

Which Quadrilateral is Which?
רישום חופשי
Steel Chair
Discriminant of y = ax² + bx + c
Task 3 - Custom Solid 1

Discover Resources

Korenovanje kompleksnih brojeva
P.2-PC: A-1 MR.G
Cuboid 3D trigonometry
Interesting Coplanar Locations (2)
PointsonSphere_CE-012419

Discover Topics

Symmetry
Area
Standard Deviation
Similar Triangles
Parametric Curves