The flag of Palestine has an aspect ratio of 1:2 and features four horizontal stripes with colors: black (top), white, green, and red (bottom). The flag also has a red triangle on the hoist side.

Color codes:

• Black: #000000
• White: #FFFFFF
• Green: #007A3D
• Red: #CE1126

Geometric properties:

1. The four horizontal stripes are equal in width, each occupying 1/4 of the flag's height.
2. The red triangle is an isosceles triangle with its base on the hoist side and an apex in the center of the flag. The triangle's height and base both equal the full height of the flag.

Measurements aren't fixed as flags can be made in various sizes, but the aspect ratio and proportions remain constant.