Question

H. Aditi wants to make rectangular cards measuring 8 cm x 5 cm. She has a square paper of side
60 cm. How many complete cards can she make from this chart. What area of chart paper will
be left?​

Answer 1

Step-by-step explanation:

The square chart paper of side 60 cm can be divided in 7 parts each of length 8 cm along one side of the chat paper and in 12 parts of lengths 5 cm along other side of the chart paper.

Number of rectangular cards =7×12=84 cards

Now, Area of the square chart paper

=(60×60)cm2

=3600 cm2

Area of the one rectangular card =(5×8)cm2

=40 cm2

Area of the 84 rectangular card =84×40 cm2

=3360 cm2

Area of remaining chart paper =(3600−3360)cm2 =240 cm2

.