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Whoever answers correctly gets brainliest, I need help ASAP don't send answers after 30 mins, the picture is attached

Whoever answers correctly gets brainliest I need help ASAP dont send answers after 30 mins the picture is attached class=

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mathstudent55

Answer:

AB = 21

Step-by-step explanation:

BC and DE are sides of a regular pentagon, so their lengths are equal.

5x - 4 = 2x + 11

3x = 15

x = 5

All sides are congruent, so AB = BC = 5x - 4

AB = BC = 5x - 4

AB = 5(5) - 4

AB = 25 - 4

AB = 21

Answer:

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Step-by-step explanation:

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