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The angles of a triangle are 99°, 3x°, and x + 5°. What is the value of x?
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The angles of a triangle are 99°, 3x°, and x + 5°. What is the value of x?

User Psychocryo
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2 Answers

2 votes
x = 19 degrees.
_____
User Aaronheckmann
by
6.6k points
7 votes
Sum of all angles in a triangle is 180°

99 + 3x + x + 5 = 180 | Sum of all the 3 angles = 180
4x + 104 = 180 | Combine like terms
4x = 76 | take away 104 from both sides
x = 19° | Divide by 4 on both sides


Answer: x = 19°
User Marian Busoi
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7.4k points
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