Divide the figure into two rectangles A and B, as shown below.

Rectangle A is 5 meters tall and 9 meters wide.
Therefore area of rectangle A = 5 × 9 = 45 square meters.

Now, rectangle B is 15 meters tall and 9 meters wide.
Therefore area of rectangle B = 15 × 9 = 135 square meters.

Now add the areas of the two rectangles: 45 square meters + 135 square meters. = 180 square meters.

Therefore the total area of the window is 180 square meters. So the area of the curtain should be 180 square meters.

We can divide the figure into two rectangles. The brown colored rectangle represents
Play ground and green colored is Park.

Multiply = 7 × 30
Therefore area of Play ground = 210 square meters.

Multiply = 40 × 5
Therefore area of Park = 200 square meters.

The total area of the figure = area of the Play ground + area of the Park = 210 square meters + 200 square meters.= 410 square meters.

The given figure is a composite figure of two rectangles. Decompose the figure into two rectangles A and B.

Start with rectangle A.
Rectangle A is 21 ft tall and 7 ft wide.

Multiply: 21 × 7 = 147 square ft.
Therefore the area of rectangle A is 147 square ft.

Now, Look at rectangle B.
It is 15 ft tall and 10 ft wide.

Multiply: 15 × 10 = 150 square ft.
The area of rectangle B is 150 square ft.

Now add the areas of two rectangles : 147 square ft. + 150 square ft. = 297 square ft.
Therefore the total area occupied by the study room is 297 square ft.

The given figure is a combined figure of two rectangles. Decompose the figure as two rectangles A and B, as shown below.

Length of the rectangle A is 5 cm and width is 1 cm.

Therefore area of the rectangle A = 5 × 1 = 5 square cm.

Now, length of the rectangle B is 10 cm and width is 3 cm.
Therefore area of the rectangle B = 10 × 3 = 30 square cm.

The total area of the figure (A + B) = 5 + 30 = 35 square cm.

Divide the figure into two rectangles A and B, as shown below.

Length of the rectangle A is 6 m and width is 3 m.
Therefore area of rectangle A = 6 × 3 = 18 square meters.

Length of rectangle B is 3m and width is 2m.
Therefore area of rectangle B = 3 × 2 = 6 square meters.

Now add the areas of the two rectangles: 18 + 6 = 24 square meters.The total area of the bath room is 24 square meters.

Decompose the given figure into two rectangles A and B, as shown bellow.

Start with rectangle A.
Rectangle A is 4 cm long and 2 cm wide.

Multiply: 4 × 2 = 8 square cm.
Therefore the area of rectangle A is 8 square cm.

Now, Look at rectangle B.
Rectangle B is 4 cm long and 2 cm wide.

Multiply: 4 × 2 = 8 square cm.
The area of rectangle B is 8 square cm.

Now add the areas of the two rectangles: 8 square cm. + 8 square cm. = 16 square cm.
Therefore the total area covered by the cards = 16 square cm.

The given figure is a combined figure of two rectangles. Decompose the figure as two rectangles A and B, as shown below.

Here rectangle A represents the yard and B represents the pool.

Length of rectangle A is 20 m long and 6 m wide.
Therefore area of rectangle A = 20 × 6 = 120 square meters.

Length of rectangle B is 10 m long and 4 m wide.
Therefore area of rectangle B = 10 × 4 = 40 square meters.

Now add the areas of the two rectangles: 120 + 40 = 160 square meters. The total area of the yard and pool is 160 square meters.

The given figure is a combined figure of two rectangular card boards. Decompose the figure as two rectangles A and B, as shown below.

Length of rectangle A is 20 cm and width is 8 cm.Therefore area of rectangle A = 20 × 8 = 160 square cm.

Now, length of rectangle B is 20 cm and width is 1 cm .Therefore area of rectangle B = 20 × 1 = 20 square cm.

The total area of the figure (A + B) = 160 + 20 = 180 square cm.

Divide the given figure into 3 rectangles; purple, green and blue.

Start with the purple colored rectangle. Length is 9 cm and width is 4 cm.
Therefore area = 9 × 4 = 36 square cm.

Take green colored rectangle. Length is 6 cm and width is 4 cm.
Therefore area = 6 × 4 = 24 square cm.

Now look at the blue rectangle. Length is 5 cm and width is 2 cm.
Therefore area = 5 × 2 = 10 square cm.

Now the total area of the picture = 36 + 24 + 10 = 70 square cm.

In order to find the total area of floor to be covered, you need to decompose the floor plan into two rectangles as Hallway and Living room as shown below.

First start with Hallway: Length of Hallway is 5 m and width is 2 m.
Therefore area of Hallway = 5 × 2 = 10 square meters.

Now, find the area of Living room: Length of Living room is 8 m and width is 5 m.
Therefore area of Living room = 8 × 5 = 40 square meters.

The total area of the floor = area of Hallway + area of Living room = 10 + 40 = 50 square meters.