The rectangular piece of wood shown in Figure 1 has a perimeter of 20 cm. Fanny arranged 4 such rectangular pieces of wood to form a figure as shown in Figure 2.
- Find the length of the rectangular piece of wood.
- Find the shaded area in Figure 2.
(a)
Length of the rectangular piece of wood
=
20 - 2 - 22 =
162 = 8 cm
(b)
Length of the shaded area
= 8 - 2
= 6 cm
Shaded area in Figure 2
= 6 x 6
= 36 cm
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Answer(s): (a) 8 cm; (b) 36 cm
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