Area circle: π × radius²
Area triangle: ½ × base × height
Area Parallelogram: base × height
Area: Rectangle: length × width
In a triangle, the base is any side between two vertices and the height is the perpendicular distance from this side to the third vertex.
In a parallelogram the base is any side. The height is the perpendicular distance between this side and the side parallel to it.
triangle circle rectangle square parallelogram rhombus
if a parallelogram is inscribed in a circle it is always a rectangle...............
Rectangle Area of parallelogram = Base * Height Area of rectangle = Base * Height
these are 2D shapes:square,parallelogram,rhombus,hexagon,octagon,triangle,circle,pentagon and a rectangle
There are lot of shapes in geometry. It is called polygons. Triangle, trapezoid, circle, parallelogram, rhombus, rectangle, diagonal, square etc. Parallelogram, rhombus, rectangle, diagonal, square, and trapezoid are quadrilaterals.
Circle, ellipse, rectangle, square, parallelogram, rhombus, trapezoid, isosceles triangle, equilateral triangle, any regular polygon.