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ALGEBRA Find x and the measures of the unknown sides of each triangle.
12.
M
13.
R
17
Sx
6x - 5
2x + 7
2
N
O
5
3x - 4
3x + 10
+

ALGEBRA Find x and the measures of the unknown sides of each triangle 12 M 13 R 17 Sx 6x 5 2x 7 2 N O 5 3x 4 3x 10 class=

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sqdancefan

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Answer:

  12.  x = 11; sides are 29

  13.  x = 5; sides are 25

Explanation:

12. The marked sides are equal length, so ...

  3x -4 = 2x +7

  x = 11 . . . . . . . . add 4-2x

  2x+7 = 2(11)+7 = 29 . . . side lengths

__

13. The marked sides are equal length, so ...

  6x -5 = 5x

  x = 5 . . . . . . . add 5-5x

  5x = 5(5) = 25 . . . side lengths

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