The figure, not drawn to scale, is made up of 2 identical squares, JKLM and NPQR. The length of each square is 45 cm. Point N is the centre of square JKLM.
- What fraction of the figure is unshaded?
- What is the area of the shaded part?
(a)
If we pivot the square NPQR from point N, we can see that the shaded area is
14 of square NPQR.
Fraction of the figure that is shaded =
17 Fraction of the figure that is unshaded
= 1 -
17=
67 (b)
Area of each square
= 45 x 45
= 2025 cm
2 Area of the shaded part
=
14 x 2025
= 506.25 cm
2 Answer(s): (a)
67; (b) 506.25 cm
2