- #1

- 189

- 0

## Homework Statement

A cube is positioned with its vertices at the following points:

A=(0,0,0) C=(1,1,0) E=(0,0,1) G=(1,1,1)

B=(1,0,0) D=(0,1,0) F=(1,0,1) H=(0,1,1)

What is the angle of intersection of the planes formed by the triangles EBC and ECD

## Homework Equations

AB=ABcosθ

Ab=Absinθ

## The Attempt at a Solution

I am stuck on this one. I drew a picture but I can seem to figure anything out. Could somebody give me a hint?