kmichelle33 kmichelle33

24-09-2020
Mathematics

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Please explain how this diagrams works

Please explain how this diagrams works class=

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marion89 marion89

24-09-2020

Answer:

x = 21°

Step-by-step explanation:

opposite angles are equal

therefore, (3x + 1)° = 64°

open the brackets

3x + 1 = 64

3x = 64 - 1

3x = 63

divide both sides by 3

x = 21°

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