The correct answer would be A. Hope this helps!
2 Dimensional shape with 5 obtuse angle is <em>Pentagon.</em>
Answer:
I hope this helps!Let me know if it helps
Answer:

Step-by-step explanation:
(This exercise is presented in Spanish and for that reason explanation will be held in such language)
El lado restante se determina por la Ley del Coseno:



Finalmente, el angulo C se halla por medio de la misma ley:




Answer:
3).

4).
If it was by 10, k = 3 by 10
k = 30
5).
