Area of Plane Shapes

Description: Description: http://www.mathsisfun.com/images/area/triangle2.gif

Triangle  مثلث
Area = b h
b = base
h = vertical height

 

Description: Description: http://www.mathsisfun.com/images/area/squar2.gif

Square  مربع
Area = a2
a = length of side

Description: Description: http://www.mathsisfun.com/images/area/rectangle.gif

Rectangle  مستطيل
Area = w h
w = width
h = height

 

Description: Description: http://www.mathsisfun.com/images/area/parallel.gif

Parallelogram  متوازي أضلاع
Area = b h
b = base
h = vertical height

Description: Description: http://www.mathsisfun.com/images/area/trap.gif

Trapezoid (US)  شبه منحرف
Trapezium (UK)               
Area = (a+b) h
h = vertical height

 

Description: Description: http://www.mathsisfun.com/images/area/circle.gif

Circle  دائرة
Area = π r2
Circumference=2
π r
r = radius

Description: Description: http://www.mathsisfun.com/images/area/ellipse.gif

Ellipse  بيضاوي
Area = π a b

 

Description: Description: http://www.mathsisfun.com/images/area/sector.gif

Sector  قطاع
Area = r2 θ
r = radius
θ = angle in radians