Question

a photograph of size 36 CM by 25 cm is mounted on to frame of external dimension 46 CM by 30 cm find the area of the border surrounding the photograph

Answer 1

480 will be the area of the border

Answer 2

The area of the border is area of frame- area of photo

Area of frame = 46 cm * 30 cm = 1380 $cm^{2}$

Area of photo = 36 cm * 25 cm = 900 $cm^{2}$

Area of border = 1380 - 900 = 480 $cm^{2}$

Therefore the area of border is 480 $cm^{2}$