Name of Shape | Shape | Formula |
Square | ![]() |
Perimeter = 4 x s Area = s x s |
Rectangle | ![]() |
Perimeter = 2l + 2w Area = l x w |
Parallelogram | ![]() |
Perimeter = 2l + 2b Area = base x height |
Rhombus | ![]() |
Perimeter 4 x a Area = (d1 x d2)/2 |
Triangle | ![]() |
Perimeter = a + b + c Area = (b x h)/2 |
Equilateral Triangle | ![]() |
Perimeter = 3 x a Area = (√3 a 2 ) / 4 |
Trapezoid | ![]() |
Perimeter = sum of all sides Area = (a + b) x h / 2 |
Circle | ![]() |
Circumference = 2 x π x r Area = π x r 2 |
Semicircle | ![]() |
Circumference = π x r x D Area = (π r 2 )/2 |