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Ostrovityanka [42]
3 years ago
15

(6x+15)° 63° triangle

Mathematics
1 answer:
monitta3 years ago
4 0

Answer:

x = 2

Step-by-step explanation:

The sum of the 3 angles in the triangle = 180°

Sum the 3 angles and equate to 180

6x + 15 + 90 + 63 = 180

6x + 168 = 180 ( subtract 168 from both sides )

6x = 12 ( divide both sides by 6 )

x = 2

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