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Geometry edulastic question

Geometry edulastic question-example-1
User Ian Clark
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1 Answer

4 votes

9514 1404 393

Answer:

n = 16

Explanation:

Angle ABC is the sum of its parts.

∠ABC = ∠ABF +∠FBC

159° = (7n +20)° +(2n -5)°

159° = 9n° +15° . . . . . . . . . . . . . . collect terms

144° = 9n° . . . . . . . . . . subtract 15°

16° = n°

n = 16

User Davidhadas
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7.5k points