The figure, not drawn to scale, is made up of 2 identical squares, DEFG and HJKL. The length of each square is 12 cm. Point H is the centre of square DEFG.
- What fraction of the figure is unshaded?
- What is the area of the shaded part?
(a)
If we pivot the square HJKL from point H, we can see that the shaded area is
14 of square HJKL.
Fraction of the figure that is shaded =
17 Fraction of the figure that is unshaded
= 1 -
17=
67 (b)
Area of each square
= 12 x 12
= 144 cm
2 Area of the shaded part
=
14 x 144
= 36 cm
2 Answer(s): (a)
67; (b) 36 cm
2