Answer:
39°
sum of triangle's interior angles: 180°
180°-90°-51°=39°
Answer:
1060000
Step-by-step explanation:
just calculation does the job
Answer:
The choice third ; a=9 , c= 18
Step-by-step explanation:


Answer:
3. 130
2. Open Circle at f, shaded left.
Step-by-step explanation:
Edg. 2020