The ratio (red to blue) of the perimeters of the similar triangles is 12:7
Assuming that the similar triangles are equilateral triangles, then all their sides will be equal.
Perimeter of a triangle = s1 + s2 + s3
For the red triangle;
Perimeter of the red triangle = 12 + 12 + 12
Perimeter of the red triangle = 36
For the blue triangle:
Perimeter of the blue triangle = 7 + 7 + 7
Perimeter of the blue triangle = 21
Taking the ratio of their perimeters;
Ratio of red to blue = 36:21 = 12:7
Hence the ratio (red to blue) of the perimeters of the similar triangles is 12:7
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Based on the above scenario, the unique ways there are to arrange 444 of the 777 dishes is 840 .
<h3>What is the arrangement about?</h3>
In the case above, the number of different arrangements of the dishes is said to be the product between the numbers of options and thus it is
4 x 3 x 2 x 1 = 24
Therefore, the total number of unique ways of arranging 4 of the 7 dishes will be:
D = 24 x 35 = 840
Therefore, Based on the above scenario, the unique ways there are to arrange 444 of the 777 dishes is 840 .
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Answer:
c) 200 additional D.A should be paid.
Explanation:
o calculate D.A first calculate inflation rate between 1980 and 1984.
Inflation Rate = × 100
Inflation Rate = × 100
= 25%
If 800 is the basic salary then D.A should be according to inflation rate 25% of the salary.
D.A = 800 ×
= 200
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