it has 3 equal sides and

3 equal corners,each corner

is 60°.

it has 4 sides each two parallel

side are 4,it has four equal

right corners each is 90°.

it has 4 equal right sides and

4 equal right corners four corners

equal 360°

it has no corners but it has 1 curved

side 360°

it has 4 side that are not equal it has 4 corner that are not equal too, 360°

it has 3 sides 2 of them are equal but has 3 corners 2 of them are equal

it has 4 sides, opposite sides are equal and parallel.It has 4 corners each 2 are equal

it has 4 sides, each 2 sides are equal it has 4 corners two of the are equal