Perimeter and Area Formulas of Geometric Shapes | All Geometry Formuls

You can find the perimeter and area formulas of all geometric shapes from the image below. We wish everyone a good work...

Rectangle perimeter = 2(a+b)

Rectangle area = a.b

Square perimeter = 4a

Square area = $a^2$

Triangle perimeter = a+b+c=2s

Triangle area = 1:1/2*b*h & 2: $\sqrt{s(s-a).(s-b).(s-c)}$

Right triangle perimeter = b+h+d

Right triangle area = 1/2 bh

Equilateral triangle perimeter = 3a

Equilateral triangle area = 1: 1/2 a.h & 2: $\frac{\sqrt{3}}{4}.a^2$

Isosceles right triangle perimeter = 2a+d

Isosceles right triangle area = 1/2 a^2

Parallelogram perimeter = 2(a+b)

Parallelogram area = a.h

Rhombus perimeter = 4a

Rhombus area = 1/2 d1 d2

Trapezium perimeter = Sum of its four sides

Trapezium area = 1/2 h(a+b)

Circle perimeter = 2πr

Circle area = πr^2

Semicircle perimeter = πr+2r

Semicircle area = 1/2πr^2

Ring (shaded region) perimeter = -

Ring (shaded region) area = π(R^2-r^2)

Sector of a circle perimeter = I + 2r where I = (Ɵ / 360) * 2πr

Sector of a circle area = Ɵ/360 * πr^2