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In AMNO, m M = (6x + 1)º, mZN = (3x – 10)", and m2O = (x + 19)°.Find mZN.

In AMNO, m M = (6x + 1)º, mZN = (3x – 10)", and m2O = (x + 19)°.Find mZN.-example-1

1 Answer

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m∠N = 41°

Step-by-step explanation:

m∠M = (6x + 1)°

m∠N = (3x – 10)°

m∠O = (x + 19)°

Triangle MNO:

m∠M + m∠N + m∠O = 180 degrees (sum of angles in a triangle)

(6x + 1)° + (3x – 10)° + (x + 19)° = 180°

6x + 1 + 3x - 10 + x + 19 = 180

collect like terms:

6x + 3x + x + 1 - 10 + 19 = 180

10x + 10 = 180

10x = 180 - 10

10x = 170

divide both sides by 10:

10x/10 = 170/10

x = 17

m∠N = (3x – 10)° = 3(17) - 10 = 51 - 10

m∠N = 41°

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