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← Henry Park Primary School · Paper 22025 / Henry Park Primary School · Paper 2 / Question 13a

Question 13a

Video explanation ↓

Meiling used identical 2-cm squares to form figures that follow a pattern. The first four figures are shown. The table shows the number of squares used and the perimeter of the first four figures. Complete the table for Figure 5. (1 mark)

Question 13a diagram

Answer: 15, 40

Workings

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perimeter

figure 1 → 1 x 8 = 8 cm figure 2 → 2 x 8 = 16 cm figure 3 → 3 x 8 = 24 cm figure 4 → 4 x 8 = 32 cm

multiples of 8 figure 5 → 5 x 8 = 40cm

number of squares

figure 1 → 1 figure 2 → 1 + 2 = 3 figure 3 → 1 + 2 + 3 = 6

figure 4 → 1 + 2 + 3 + 4 = 10

figure 5 → 1 + 2 + 3 + 4 + 5 = 15

Video explanations

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