Ava45018 Ava45018
  • 14-02-2018
  • Mathematics
contestada

How do you do this and what's the answer?

How do you do this and whats the answer class=

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sqdancefan
sqdancefan sqdancefan
  • 15-02-2018
The triangle is isosceles, so the base angles are both x°. The angles add to 180° as with any triangle.
.. x° +x° +30° = 180°
.. 2x = 150
.. x = 75 . . . . . . . . . . . . . corresponds to selection D
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