Mensuration

**Category : **6th Class

**Mensuration**

- A curve which begins and ends at the same point is called a closed curve.
**Closed polygon**in which all sides and angles are equal are called**regular closed figures.**

- The length of the boundary of a figure is called its

- The perimeter of a triangle is the sum of the lengths of the three sides, i.e., a + b + c.

- The perimeter of an isosceles triangle = 2a + b and perimeter of an equilateral triangle = 3a.

- The perimeter of a square is four times the length of its side, i, e., 4a.

- The perimeter of act angle is twice the sum of its length and breadth, i.e., 2 (\[l\]+ b).

- Perimeter is expressed in units of length.

- Area of an enclosed plane is the number of square units that fit into it.

- Area is always expressed in square units.

- 1m =100 cm

1 cm = 10 mm

1 sq. m= 1000 sq.cm

1 sq.cm = 100 sq.mm

** **

*play_arrow*MENSURATION*play_arrow*Mensuration*play_arrow*Mensuration Basics*play_arrow*Mensuration (Perimeter & Area, Review of Earlier Concepts)*play_arrow*Mensuration*play_arrow*Mensuration

You need to login to perform this action.

You will be redirected in
3 sec