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12-04-2021
Mathematics

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What’s the value of a and b

Whats the value of a and b class=

Respuesta :

maryyllaa maryyllaa

13-04-2021

Answer:

a=11°

b=12°

Step-by-step explanation:

106°+ 7a-3°= 180°

7a= 180°-106°+3°

7a = 77°

a=77/7

a=11°

106° = 9b-2°

108°=9b

108/9 =b

b=12°

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