elizebethflores184
elizebethflores184 elizebethflores184
  • 23-02-2022
  • Mathematics
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Hey you! Mind lending a hand here?

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chetankachana
chetankachana chetankachana
  • 23-02-2022

Answer:

6) C: 7, 9, 3
7) C: 40°

Step-by-step explanation:

6)
Follow this rule:
The sum of the smaller to side lengths must be greater than the largest side length

  • 5 + 4 < 10    not a triangle
  • 5 + 7 < 12    not a triangle
  • 7 + 3 > 9      a triangle
  • 4 + 5 < 10    not a triangle

The correct answer is C) 7, 9, 3

7)

The sum of angles in a triangle is always 180°
Subtract the other two angles:

  • x + 60° + 80° = 180°
  • x + 140° = 180°
  • x = 40°

The correct answer is C) 40°

-Chetan K

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