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Practice Geometric figures are the favorite source of problems on patterns to test one's critical thinking skills. Four polygons are shown with drawn diagonal lines. Determine the pattern and complete the table for the number of diagonals. No. of sides 3 5 6 8 No. of diagonals 0 2 5 Determine the pattern and complete the sequence. 1. Which should be the 4" figure to continue the sequence on the left? Fig. 1 Fig. 2 Fig. 3 c 2. Draw Fig. 5 following the given pattern. Fo. 5 a. If the length of the side of each triangle is 1 unit, what is the perimeter of each figure in the pattern? Complete the table below. Figure 2 3 5 6 Perimeter 3 b. If this pattern continues, what is the perimeter of Fig. 9? c. What is the perimeter of the nth figure? 18 Module 1 | Discovering Patterns and Numbers In Nature 3. Fill in the table below to complete the power of 3. 31 32 31 31 3 a. Enumerate all the numbers in the power of 3 which are in the ones digit, and then find the next 7 terms in the sequence without getting the power of 3. Figure 31 32 33 35 35 37 3 310 311 312 313 314 315 Ones digit 3 9 b. Find the number in the ones digit for the following power of 3. 316 = 320 =