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babymother [125]
3 years ago
9

What is the value of x.

Mathematics
2 answers:
Ivanshal [37]3 years ago
5 0

Answer:

<U+<V +< W = 180°[sum of interior angle of a triangle is 180°]

3x+9° +30° + 24° = 180°

3x + 45° = 180°

3x = 180° -45° = 135°

x = 135/3

x = 45°

aliina [53]3 years ago
4 0

THEOREM:

  • Angle sum property —: The sum of interior angles of a triangle is 180°.

ANSWER:

<u>By angle sum property</u>,

∠U + ∠V + ∠W = 180°

  • 3x - 9° + 30° + 24° = 180°
  • 3x + 45° = 180°
  • 3x = 180° – 45°
  • 3x = 135°
  • x = 135/3
  • x = 45°

So, <u>Correct choice</u> - [C] 45°.

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