Answer :

The area of the above given figure can be calculated as:

**(a)**

We know that,

Area of rectangle = Length × Breadth

Therefore,

Atrea of 1^{st} rectangle = 12 × 2 = 24 cm^{2}

Also,

Area of 2^{nd} rectangle = 8 × 2 = 16 cm^{2}

Thereore,

Total area= 24 + 16 cm^{2}

= 40 cm^{2}

**(b)**

The area of the above given figure can be calculated as:

We know that,

Area of rectangle = Length × Breadth

Also,

Area of square = (Side)^{2}

Therefore,

Area of one square = 7 × 7

= 49 cm^{2}

As there are 5 squares in total of equal size.

Area of 5 squares = 5× 49 cm

^{2}

= 245 cm

^{2}

**(c)**

The area of the above given figure can be calculated as:

We know that,

Area of rectangle = Length × Breadth

Therefore,

Area of 1^{st} recatngle = 5 × 1 = 5 cm^{2}

Also,

Area of 2^{nd} rectangle = 4 × 1 = 4 cm^{2}

Therefore,

Total area = 5 + 4 = 9 cm^{2}

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