Answer:
2 21 degree angles
Step-by-step explanation:
An isosoles triangle has two congruent angles and every triangle's sum of interior angles equals 180 degrees. 138*2>180, so the 138 degree angle cannot be congruent to any of the other angles. Therefore:
180=138+2x
42=2x
21 degrees=x
Maybe you should work on starting you're sentences.
Answer:
Vertex
Step-by-step explanation:
Vertex is the 'point' of an angle
Answer:
Sophia is 17 years old. Sophia's brother is 11 years old.
Step-by-step explanation:
Answer:
this is the ans
Step-by-step explanation:
hope it helps!!!