Question 50

When we add a monomial and a trinomial, then answer can be a monomial. Make a table that shows the number of triangles in each figure. Then tell how many triangles are in the fifth figure of the pattern. Use drawings to justify your answer. Figure 1 Figure 2 Figure 3 The table shows the number of triangles in each figure. Figure 1 2 3 4 5 The pattern is to add Number of 2 4 6 8 10 2 triangles each time. Triangles +2 +2 +2 +2 Figure 4 has 6 + 2 = 8 triangles. Figure 5 has 8 + 2 = 10 triangles. Figure 4 Figure 5 15-04-2018

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