18. Assessment Focus You will need
1-cm grid paper and coloured pencils.
a) Draw a 6-cm by 8-cm rectangle.
Shade:
T the grid solares in the
rectangle red
0.25 of the grid squares green
of the grid squares blue
Explain how you did this.
b) What fraction of the rectangle is
a squiares blue
Explan
not shaded? Write this fraction as a
decimal and as a percent
c) Do you think you could have
completed part a with a 6-cm by
9-cm rectangle? With a square of side
length 7 cm? Explain.