## Area in Square Centimetres (cm^{2}) and Square Metres (m^{2})

#### What are square metres (meters) and square centimetres (centimeters)?

Area is measured in

A square of sides 1 cm (shown below) has an area of 1 square centimetre, also written as 1 cm

*square centimetre (cm*and^{2})*square metre (m*.^{2})A square of sides 1 cm (shown below) has an area of 1 square centimetre, also written as 1 cm

^{2}.
A square of sides 1 m (shown below) has an area of 1 square metre, also written as 1 m

^{2}.#### 1. What is the area of the shaded figure below?

The figure is made up of seven 1-cm squares.

The area of each 1-cm square is 1 cm

So, the area of the shaded figure is 7 cm

The area of each 1-cm square is 1 cm

^{2}.So, the area of the shaded figure is 7 cm

^{2}.#### 2. Mr. Alex arranges a few 1-m^{2} marble tiles on a floor as shown below.

What area of the floor is covered by the marble tiles?

Count the number of 1-m squares.

There are nine 1-m square marble tiles used in the pattern.

The area of each 1-m square is 1 m

So, the area of the floor covered by the marble tiles is 9 m

There are nine 1-m square marble tiles used in the pattern.

The area of each 1-m square is 1 m

^{2}.So, the area of the floor covered by the marble tiles is 9 m

^{2}.
The tiles are arranged into a 3 m × 3 m square.

#### 3. Find the area of the figures below.

**Figure A:**

The figure is made up of squares and half-squares.

Total area of Figure A

= 6 cm

^{2}+ 1 cm

^{2}

= 7 cm

^{2}

The area of Figure A is 7 cm

^{2}.

**Figure B:**

The figure is made up of squares and half-squares.

Total area of Figure B

= 8 m

^{2}+ 2 m

^{2}

= 10 m

^{2}

The area of Figure B is 10 m

^{2}.

Two half 1-cm squares make one full 1-cm square.