Mensuration : Length, Area, and Volume : Area of Square and Rectangle

maths > mensuration-basics

Area of Square and Rectangle

what you'll learn...

Overview

Area of a Square and a Rectangle :
Area of square $= {side}^{2}$ $=text( side)^2$

Area of rectangle $= length \times width$ $=text( length ) xx text( width)$

Area of a figure is the "surface-span within a closed shape".

The area of a square of side $7$ $7$ cm is " $7 \times 7 = 49 c m^{2}$ $7xx7 = 49cm^2$ ". Area of a square is square of the side.

The area of a rectangle of length $7$ $7$ cm and width $5$ $5$ cm is " $7 \times 5 = 35 c m^{2}$ $7xx5 = 35cm^2$ ".

Area of the rectangle is the product of its length and width.

What is the area of a rectangle with sides $2$ $2$ cm and $15$ $15$ mm?
The answer is " $2 \times 1.5 = 3 c m^{2}$ $2xx1.5 = 3 cm^2$ ". The unit of measurement is made uniform before calculating the area.

summary

Area of a Square and a Rectangle :
Area of square $= {side}^{2}$ $=text( side)^2$

Area of rectangle $= length \times width$ $=text( length ) xx text( width)$

Outline

The outline of material to learn "Mensuration basics : Length, Area, & Volume" is as follows.

Note: click here for detailed outline of Mensuration (Basics).

• Measuring Basics

→ Introduction to Standards

→ Measuring Length

→ Accurate & Approximate Meaures

→ Measuring Area

→ Measuring Volume

→ Conversion between Units of Measure

• 2D shapes

→ Perimeter of Polygons

→ Area of Square & rectangle

→ Area of Triangle

→ Area of Polygons

→ Perimeter and area of a Circle

→ Perimeter & Area of Quadrilaterals

• 3D shapes

→ Surface Area of Cube, Cuboid, Cylinder

→ Volume of Cube, Cuboid, Cylinder