Question

Shivani hangs a picture that is 40 cm long and 28 cm wide in the centre of a panel leaving the border of 1 cm on all sides. find the area of the panel and uncovered by the picture ​

Answer 1

Answer:

1260 square cm is the area of the panel and 140 square cm  is the area uncovered..

Step-by-step explanation:

area of the panel would be =length cross breadth

length=42 cm

breadth=30 cm

area of panel=1260 square cm

now,

          area of uncovered part= area of panel -area of picture

                                                =1260-1120

=140 square cm

Answer 2

Answer:

140²

Step-by-step explanation:

Required Area = Area of outer rectangle - Area of inner rectangle

= [ 30 × 42 ] - [ 28 × 40 ]

= 1260 - 1120

= 140cm²