Answer:
The quadrilateral is a trapezium as two of its opposite sides are perpendicular to one side. Rectangle is also a type of trapezium and so is a square
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The answer of this would be D 38.5
Area is square units, so the new area would be the scale factor squared:
Scale factor is 2, so the area would increase by 2^2 = 4
The answer is B.4
Answer: Choice C) 36:25
To get this answer, we simply square each piece of the original ratio 6:5
6^2 = 36
5^2 = 25
Think of two squares where one has a side length of 6 and the other of 5. The ratio of the sides is 6:5. The areas of the two squares are 36 and 25 as mentioned above. So the ratio is 36:25. This idea can be applied to any surface area or area in general. It doesn't have to be two squares. The reason why we can apply this to any general shape is because we can break up the shape into small squares to get a rough approximation. The more squares we use, the better the approximation.