Question

Tina needed a square of side 4 cm for completing a collage. She had a rectangular sheet of

length 28 cm and breadth 21 cm Fig 1). She cuts off a square of side 4 cm from the rectangular sheet (Fig 2 Tina cuts off one more square of 4 cm side from the opposite side Fig 3)

Has the perimeter of the sheet increased or decreased in Fig 2? a) increased b) decreased How much is the increase or decrease in per meter

a07 cm increase b 7 cm decrease ) 10 cm increase di 16 cm decrease

What a the original area of the paper?

acmb) 588 om 560 cm a 90 cm

WHas the area increased or decreased?

Increased b) decreased

N How much is the increase or decrease in area?

a cm increase b) 16 cm increase c) 4 cm decrease d 16 cm decrease​

Answer 1

Answer:

Given : a square of side 4 cm  cut off from  a rectangular sheet of

length 28 cm and breadth 21 cm

To find :       Has the perimeter of the sheet increased or decreased and by how much?

Solution:

perimeter of the sheet has neither increased nor decreased .

Perimeter of rectangular sheet  = 2 (28 + 21)

= 2(49(

= 98 cm

Perimeter of sheet after cutting square of 4 * 4  cm

=  28 + 21 + 24 +  4 + 4 + 17

= 98 cm

Perimeter is still same

plz mark me as brainliest