Now, the area of a triangle is half of the base times height, so: Area of one triangle = base Ã height / 2 = side Ã apothem / 2. To get the area of the whole polygon, just add up the areas of all the little triangles (n of them): Area of Polygon = n Ã side Ã apothem / 2. And since the perimeter is all the sides = n Ã side, we get: Area of Polygon = perimeter Ã apothem / 2.
Intense interest if your cat is focusing on something, like a bird outside, or if heâs about to pounce on a toy (prey). Ecstasy if your cat is really enjoying a grooming session. Anger if the tail is thumping loudly on the floor. An invitation to another cat to play.
Your cat may be alert, confident, relaxed or amicable. It can definitely depend on the situation and the rest of your catâs body language. Hook in base of tail: Also called the âinverted Uâ or âhorseshoeâ tail, this behavior signals defensive aggression. Usually, your catâs tail will be bristled too.