Q38 of 89 Page 120

If two ratios are equal, then they are in _____.

proportion.


Use Fig. 8.2 (In which each square is of unit length) for questions 39 and 40:


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36

20m : 70m = Rs 8 : Rs ______.

 37

There is a number in the box such that , 24, 9, 12 are in proportion. The number in the box is _____.

 39

The ratio of the perimeter of the boundary of the shaded portion tothe perimeter of the whole figure is _______.

 40

The ratio of the area of the shaded portion to that of the whole figure is ______.