How to use "angle" in a sentence

But now it lay at an angle, the base against the wall, the easel itself slanted, chalkboard-down, across a game table

One of the planes swung in tight circles, faster and faster, then in wider circles, steadily decreasing the angle between the line on which it was suspended and the bedroom ceiling

I'll play up the mother-suffering-distress angle, and the court ought to be sympathetic."

The cab was at such an angle from them that they couldn't see who was in it.