Answer: BLook At the pictures Please. :)
I graphed your points so you can see it visually. Look through all the pictures they show my process.
The answer is
graph A
Hope this helps :)
Answer would be -19 and your welcome :)
Electric current? Why is the thing math lol.
T= 60°
It is an equilateral triangle which means all sides and angles are equal
u= 10m
It is an equilateral triangle which means all sides and angles are the same