FH98NF FH98NF
  • 03-04-2020
  • Mathematics
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Help i dont understand

Help i dont understand class=

Respuesta :

maximpudlo
maximpudlo maximpudlo
  • 03-04-2020

Answer:

x = 7

Step-by-step explanation:

This is an isosceles triangle

This means two angles are identical

There are 2 angles with the size 9x-25

Now you should add all of the angles together

104 + 9x-25 +9x-25

Then simplify this

54 + 18x

You should know that angles in a triangle add up to 180

54 + 18x = 180

Subtract 54 from both sides

18x = 126

divide both sides by 18

x = 7

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