Quadrilaterals are the four-sided polygons. By this, it means that the no. of sides, vertices and angles they have is four each. In Quadrilaterals, the internal angles total up to 3600 There are 7 types of different Quadrilateral.

 Quadrilateral Type Quadrilateral Formula Square = p×p, p is side. Rectangle = l×b Rhombus = $\frac{d1 \times d2}{2}$, d1 and d2 are diagonals. Parallelogram = b×h Trapezium = $\frac{[(a+b)h]}{2}$ Isosceles Trapezium = $\frac{[(a+b)h]}{2}$ Kite $\frac{d1 \times d2}{2}$, d1 and d2 are diagonals.

### Solved Examples of Formulas of Quadrilateral

Q: The area of a parallelogram is 36 and the height is 6. Find the base.

Sol: Given, area=36, and h=6

To find: base b

Formula: b×h

Area of parallelogram=b×h

36 =b(6)

b=36 / 6 = 6

Stay tuned to BYJU’S to study more mathematical formulas and concepts on different topics.