Given points,
(x1,y1)=(2,9)
(x2,y2)=(10,6)
now the distance between two points is,

30^2=a^2+2(a)^2
900=a^2+4a^2
900=5a^2
180=A^2
6√5=a
a=13.4164cm
The answer would be B
What you would do is 180-72= 108 degrees
20 ribbons
Explanation:
1st day— 5 ribbons
2nd day—2 x 5 = 10 ribbbns
3rd day— 2 x 10 = 20
Hope this helps
Answer:
-19
Step-by-step explanation: