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kozerog [31]
3 years ago
7

If angle DEF is an isosceles triangle with DE congruent to EF, Find x

Mathematics
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer:

Fourth choice, 16

Step-by-step explanation:

The 2 angles are both 74 degrees, so the side that is facing each angle will be the same length, so:

9x - 73 = 3x + 23

add 73 to both sides

9x = 3x + 96

subtract 3x from both sides

6x = 96

divide by 6

x = 16

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