Question

(1) If three smaller squares, each of area
2.5 cm square are cut out from a rectangular
cardboard of area 40 cm square, find
the area of the remaining piece of
cardboard​

Answer 1

Answer:

area of one square = 2.5 cm^2

area of 3 squares = 2.5 CM x 3

=7.5 cm^2

area of rectangle=40 cm^2

area of remaining part =40 cm^2-7.5cm^2

=32.5 cm^2