Are there any choices that i can help with to solve the work problem
The answer to your math question is 66°.
Adding 47° and 67° is 114°.
Subtracting 114° from 180° equals 66°.
Answer:

Step-by-step explanation:
Angles in a straight line add up to 180°.


Angles in a triangle add up to 180°.


Answer:
c) three
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Step-by-step:
The tetrahedron is a triangular pyramid with equilateral triangles on each face.