ClipArt ETC
A 5-point star made from a non-regular concave decagon in which all sides are equal in length.

Concave Equilateral Decagon

A 5-point star made from a non-regular concave decagon in which all sides are equal in length.

A 6-point star made from a non-regular concave dodecagon in which all sides are equal in length. There is vertical, horizontal, rotational, and diagonal symmetry.

Concave Equilateral Dodecagon

A 6-point star made from a non-regular concave dodecagon in which all sides are equal in length. There…

Illustration of an irregular figure. To find area, divide round curved portions in small steps with dividers ; add in any straight pieces. "Divide into narrow strips; measure their mid-ordinates. Then - Area = aver. mid-ordinate X length.

Area Of Irregular Figures

Illustration of an irregular figure. To find area, divide round curved portions in small steps with…