Question

From a rectangular sheet of tin, of size 100 cm by 80 cm, are cut four squares of side 10
cm from each corner. Find the area of the remaining sheet.​

Answer 1

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

Given,

length=100cm

breadth=80cm

side of square=10cm

no. of square cut=4

area of rect. = l × b

= 100 ×80

=8000 cm sq.

area of square = 10 × 10

= 100 cm sq.

for 4 squares = 4×100

=400 cm sq.

area of remaining sheet = area of rect. - area of square

= (8000 - 400) cm sq.

= 7600 cm sq.

Hence, the area of remaining sheet is 7600 cm sq

Answer 2

Area of remaining sheet = Area of rectangular sheet - Area of four squares

Length = 100cm ; Breadth = 80cm

Firstly, we find area of rectangular tin sheet :

Area of rectangular sheet = L × B

= 100 × 80 cm

= 8000 cm²

Area of one square = side × side

= 10 × 10

= 100 cm²

Area of 4 square = 4 × 100

= 400cm²

Area of remaining sheet :

= 8000 - 400 cm²

= 7600 cm²

Hope this will help you.