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il63 [147K]
4 years ago
9

What is the measure of angle G ?

Mathematics
1 answer:
ANEK [815]4 years ago
4 0

Answer:

  m∠G = 121°

Step-by-step explanation:

The sum of angle measures of a triangle is 180°. Then ...

  x + (x -5) + (3x+25) = 180

  5x +20 = 180 . . . . simplify

  5x = 160 . . . . . . . . subtract 20

  x = 32 . . . . . . . . . . divide by 5

  3x+25 = 3(32) +25 = 121 . . . . the measure of G in degrees

_____

<em>Check</em>

The other two angles are

  • x° = 32°
  • (x-5)° = 27°

Then the total of the angle measures is

  x + (x-5) + (3x+25) = 32° + 27° + 121° = 180° . . . as it should be

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