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Ierofanga [76]
3 years ago
15

The smaller triangle was dilated to form the larger triangle. What is the value of x? A smaller triangle has side lengths of 5,

13, 12. A larger triangle has side lengths of x, blank, 18. 6.9 7.5 10 11
Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

7.5

Step-by-step explanation

CUZ IMMA BIG BRAIN

riadik2000 [5.3K]3 years ago
4 0

Answer:

x = 7.5

Step-by-step explanation:

Dilation is a transformation in which the size of a given figure is either increased or decreased by a scale factor.

Given that the length of sides of the smaller triangle are; 5, 13, 12.

Given also that the length of the dilated triangle are; x, blank, 18.

Comparing the length of the last sides of the two triangles, we have;

(scale factor x 12) + 12

                        = (\frac{1}{2} x 12) + 12

                        = 6 + 12

                        = 18

Thus the scale factor for the dilation is \frac{1}{2}. So that:

x = (\frac{1}{2} x 5) + 5

   = 2.5 + 5

   = 7.5

x = 7.5

And also,

blank = (\frac{1}{2} x 13) + 13

          = 6.5 + 13

blank  = 19.5

Therefore, the length of the sides of dilated triangle are: 7.5, 19.5, 18

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