Given:
Number of triangles put together = 97
Length of each triangle = 1 cm
Let's find the perimeter of the 97 triangles when they are put together in the pattern shown.
From the given pattern, we have 5 triangles.
To find the perimeter of each pattern, we are to add the length of the bases + the length of each side of the first and last triangle.
Thus, to find the perimeter when 97 triangles are put together, we have:
P = 97(1) + 1 + 1 = 99 cm
Therefore, the perimeter of 97 triangles put together in the shown pattern is 99 cm
ANSWER: