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25-03-2021
Mathematics

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Find the value of x in each figure

Find the value of x in each figure class=

Respuesta :

Hrishii Hrishii

25-03-2021

Answer:

x = 72

Step-by-step explanation:

By exterior angle theorem:

x° + (x + 10)° = 154°

(x + 10 + x) ° = 154°

(2x + 10)° = 154°

2x + 10 = 154

2x = 154 - 10

2x = 144

x = 144/2

x = 72

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