The rectangular piece of wood shown in Figure 1 has a perimeter of 24 cm. Jean 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
=
24 - 2 - 22 =
202 = 10 cm
(b)
Length of the shaded area
= 10 - 2
= 8 cm
Shaded area in Figure 2
= 8 x 8
= 64 cm
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Answer(s): (a) 10 cm; (b) 64 cm
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