Question

a photograph of side 35 cm by 22 CM in mounted on to a frame of external dimensions 45 CM by 30 cm find the area of the border surrounding the photograph

Answer 1

dimensions of photograph = 35*22 sq cm
area of photograph = 770 sq cm
dimensions of frame = 45*30 sq cm
area of frame = 1350 sq cm
area of border = area of frame - area of photograph
area of border = 1350 sq cm - 770 sq cm
area of border = 580 sq cm