The ratio is: 7cm to 1cm
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28cm is about 11 inches
The perimeter is the addition of the all the sides of the shape. For example if a rectangle has two sides which are 4cm and two sides which are 7cm, then the perimeter will be 4cm+4cm+7cm+7cm. The perimeter would therefore be 22cm. The area of a shape is gotten by multiplying the length and breadth of the shape. For example, in a rectangle witrh the same measurements above, the area will be 4cm x 7cm and that would 28cm. You have to use the square sign but I can't do that here.
Well, isn't that a happy little question! The ratio of 10cm to 4cm is 5:2. It's like painting a beautiful landscape with different brush sizes - each part plays a special role in creating a harmonious picture.
It is an equilateral triangle
96 sq. cm