It means your coolant levels are low.
A rectangle is not an angle at all. It's a flat shape that looks like a box. A rectangle can never have a reflex angle inside it. But it always has four of them on the outside.
Owner's manual. I would suspect this is the Traction Control light.
It is red, and looks like most other types of trans fluid
In the past this use to mean that the brake master cylinder was low on fluid. Or the sensor inside the master cylinder (which is a float) is stuck on the bottom of the resevior.
washer fluid low level warning light. fill up your washer fluid.
This warning light means that you need to add brake fluid to your car. Improper fluid levels can cause brake malfunction resulting in an accident.
A parallelogram looks like a squashed over rectangle.
No, it looks like blisters with puss/water like fluid inside.
It looks like a rectangle with squiggles going across the middle of it, with an arrow pointing down.
it means your low on radiator fluid
I believe its the windshield wiper fluid for the car. Check the rear fluid also.
low radiator fluid