You can conclude that the sides are parallel because the slope of the opposites are the same. (Second option).
You can conclude that the polygon is a rectangle since it has 4 90º angles, and 4 sides, each one parallel to the other and of the same lenght as it's parallel. (Last option).
Answer:

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Answer:
1 draw a line of 7.5 cm YZ by scale
2 construct the 90 degree with the help of protecter
3 then cut arc of 6 cm on 90 degree of angle & mark as X
4 join X and Z by scale
2x(x+4)-1(x+4)
2x^2+8x-x-4
2x^2+7x-4
Answer:
6
Step-by-step explanation:
idk I searched it up and it gave me a link and I clicked it and then I counted six triangles after scrolling down