Question

The painting by itself is a rectangle with length 20 cm and width 16 cm. The painting and frame together form a larger rectangle with length 25 cm and width 20 cm Find the area of the frame.

Answer 1

The area of frame is 180 square meters.

Explanation:

We are given the following in the question:

Dimension of rectangular painting:

Length, l = 20 cm

Width, w = 16 cm

Dimension of frame:

Length, L = 25 cm

Width, W = 20 cm

We have to find the area of frame.

Area of rectangle =

`A = l* w`

Area of frame =

`A-a\\=(L* W)-(l* w)\\=(25* 20)-(20* 16)\\=180\text{ square meters}`

Thus, the area of frame is 180 square meters.