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angles of a triangle, find xº. If x°, 2x°, and 30° are the angles of a triangle, find x° and 2xº. If 3x°, 4x°, and 5x° are the angles of a triangle find these angles​

User Gene C
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1 Answer

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Answer:

Explanation:

The sum of angles in a triangle add up to 180

Triangle 1:

x + 2x + 30 = 180

⇒ 3x + 30 = 180

⇒ 3x = 180 - 30

⇒ 3x = 150

⇒ x = 150/3

x = 50

⇒ 2x = 2(50)

2x = 100

x = 50°

2x = 100°

Triangle 2:

3x + 4x + 5x = 180

⇒ 12x = 180

⇒ x = 180/12

⇒ x = 15

3x = 3(15)

⇒ 3x = 45

4x = 4(15)

⇒ 4x = 60

5x = 5(!5)

⇒ 5x = 75

The angles are: 45°, 60° and 75°

User Mark Nashat
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