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The angles of a triangle are 2x, 3x, and 4x degrees. Find the value of x. A) 20 B) 30 C) 40 D) 50

The angles of a triangle are 2x, 3x, and 4x degrees. Find the value of x. A) 20 B) 30 C) 40 D) 50
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1 vote
The angles of a triangle are 2x, 3x, and 4x degrees. Find the value of x.

A)
20
B)
30
C)
40
D)
50

User Jelmer
by
8.2k points

2 Answers

5 votes
(2x)° + (3x)² + (4x)° = 180°
(2x + 3x + 4x)° = 180°
(9x)° = 180°
 9 9
 x = 20°

The answer is A.
User Soumyaansh
by
8.2k points
5 votes
The sum of the angles equals 180
So 2x+3x+4x=180
9x=180
x=20
User Dipto
by
8.4k points
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