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MrMuchimi
3 years ago
9

Pls help me -geometry-

Mathematics
2 answers:
DENIUS [597]3 years ago
6 0

Answer:

r = 14

Step-by-step explanation:

1. Because the two angles are a pair of opposite angles formed by intersecting lines, they're vertical angles/congruent.

2. To find the value of r, we can write an equation of: 7r + 6 = 8r - 8

3. (Solving)

  • 7r + 6= 8r - 8
  • 7r + 6 - 8r = 8r - 8 - 8r
  • -r + 6 = -8
  • -r + 6 - 6 = -8-6
  • -r = -14
  • \frac{-r}{-1} = \frac{-14}{-1}
  • r = 14

Therefore, r = 14.

polet [3.4K]3 years ago
4 0

Answer:

The value of r is 14.

Step-by-step explanation:

Vertical angles are the angles formed when two lines intersect each other. The opposite angles formed by these lines are called vertically opposite angles.

(7r+6)^{\circ}=(8r-8)^{\circ}\\7r-8r=-8-6\\-r=-14\\r=14

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