Question
The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas.
- Perimeter = 14:9, Area = 196:81
- Perimeter = 9:14, Area = 81:196
- Perimeter = 81:196, Area = 9:14
- Perimeter = 196:81, Area = 14:9
Hint:
Perimeter = length of the corresponding sides
Area = square of sides
Finding the ratio of perimeter and area of red and blue figures
The correct answer is: Perimeter = 14:9, Area = 196:81
Ratio of perimeter = ratio of lengths of corresponding sides
Ratio of perimeter of Red : Ratio of perimeter of Blue = 14:9
Ratio of area
Ratio of area of Red : Ratio of area of Blue = 142:92 = 196:81
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