The basic unit of area is a centimetre square.

**Example 1**

Calculate the area of this shape, made of centimetre squares and half squares.

**Answer**

There are 10 full squares and 2 half squares.

Area = 10 × 1 + 2 × 0.5 = 10 + 1 = **11 **cm^{2}

**Example 2**

Calculate the area of this shape, made of centimetre squares and half squares.

**Answer**

The area of a rectangle = length × width

Area of rectangle = 3 × 2 = 6 cm^{2}

Area of triangle = 0.5 cm^{2}

Area of shape = 6 + 0.5 = **6.5** cm^{2}

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