# Each side of a square bed is 3m 80cm long. it is extended by digging a strip of 50cm wide all around it.find the area of the enlagred bed and also the increase in the area of the bed.

2
by edwadsss

Log in to add a comment

by edwadsss

Log in to add a comment

Area of the original square = side ²

= 3.8²

=14.44 m²

Now the side is increased by 50 cm

so the side = 3.8+ 0.50 + 0.50

= 4.8 m

Area of the new square = side ²

= 4.8²

=23.04 m²

Now the area increased = New area - original are

=23.04 - 14.44

= 8.6 m²

area of old square is 380*380 cm (converted it first)

that is 144400 cm sq.

that is

the area of new square is 480 *480 cm (converted it first)

that is 230400 cm sq.

that is

the increase in area is new square's area - old square's area

that is

or 86000 cm sq.

over and out!