Answer:
30% and 156 km was paved in the third month.
Step-by-step explanation:
1. 0.004, 4%, 4 x 10^-1, 1/4, 4/9
2. 6%, 16%, 1/6, 0.6, 6x 10¹
3. 7%, 7.5 x 10^-2, 3/4, 7/10, 7.5
4. 2%, 3/16, 1/5, 2/9, 2 x 10²
Since the ratio of their similar sides are equal hence the triangles are similar
Two figures are are known to be similar if the ratio of their similar sides are equal to a constant known as the scale factor.
For the triangles given, take the ratio of the sides;
12/2 = 6
30/5 = 6
36/6 = 6
Learn more on similar shapes here: brainly.com/question/2644832
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