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16-12-2020
Mathematics

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aidanplayer18 aidanplayer18

16-12-2020

Answer:

x = 70

Step-by-step explanation:

Since the two sides are congruent, then the base angles are congruent.

2x + 40 = 180

subtract 40 from both sides

2x = 140

divide by 2 on both sides

x = 70

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