What is the value of a?

JYL asked Nov 24, 2023

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24 votes

JYL asked Nov 24, 2023

by JYL

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20 votes

Explanation:

"The sum of all the angles in a triangle = 180”

6a° + (11a—20)° +30° = 180

17a° + 10 = 180

17a° = 170

a = 10°

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Paul Hoffman answered Nov 30, 2023

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