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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
Learn more here: brainly.com/question/15046223
The elongation of the rod is 
`
<h3>Young Modulus of a substance</h3>
The young modulus of a substance is the<u> ratio of stress to the strain</u> of material.
where:
- F is the applied force = 5000N
- l is the length of the rod = 5.0m
- A is the cross-sectional area =
Required
Extension of the rod "e"
Substitute the given parameters into the formula to have;
Hence the elongation of the rod is `
Learn more on young's modulus here: brainly.com/question/6864866
C hope this helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
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