Area Of Plane Figures Gar Ldh

Measurements of Areas 1.

Rectangle: - A quadrilateral with two opposite sides equal and four angles equal to 900. Area of rectangle= length* breadth

2.Square: - A quadrilateral with all sides equal and four angles equal to 900. Area of square= (side) 2

3. Parallelogram: - A quadrilateral with opposite sides parallel and equal. Area of a llgm= Base*Height

2.

Rhombus: - A parallelogram with all four sides equal. Area of rhombus= ½ *(product of diagonals)

4.Trapezium: - A quadrilateral with any one pair of opposite sides parallel Area of trapezium=1/2 (sum of ll sides * distance between them)

5.Right- angled triangle: - A triangle with one angle equal to 900.

Area of triangle: - ½*base *height

6. Isoceles Triangle :- A triangle with any two sides are equal.

7. Equilateral Triangle :- A triangle with all

sides are equal.

8. Scalar Triangle :- when length of all sides of the triangle are different is called scalar triangle

9. Acute angle-: when all angles of the triangle are acute means less than 90 is called acute angled triangle. 10. Acute angled Triangle :- when all the angles of triangle are acute is called acute angled triangle 700

600

500

10. Obtuse angled Triangle :- when all the angles of triangle are obtuse is called obtuse angled triangle

Submitted By: Teacher Name:- Mrs Sunita Khterapal  StudentsNames:- Shashikla, Amandeep,Sanjay,Neelam,Puja Under the Guidance:Teacher Trainer :- Mr.Hari Krishan Bhatt Student Trainer :- Miss Kajli Tandon SESSION :– 2006-2007

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