Ava45018
Ava45018
14-02-2018
Mathematics
contestada
How do you do this and what's the answer?
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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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