Answer:
Could you please put this in english?
Step-by-step explanation:
So sorry I can't help
Answer:
Angle b = 20
Angle c = 160
Step-by-step explanation:
You know this because angle b corresponds with the other 20 degree angle. A line equals 180 so therefore 180-20 = 160.
I really hope this helped
Answer:
B. isosceles, obtuse
Step-by-step explanation:
An isosceles triangle has 2 congruent sides and the is an obtuse angle.
Answer:
128
Step-by-step explanation:
1/3base area×height
Let n = the number of points
(x-1) + ... (x-x)
The last term will always be 0, when you reach that, stop.
ex. 1pt: 1-1=0
2pt: (2-1) + (2-2) = 1
3pt: (3-1) + (3-2) + (3-3) = 3