sqrt((x2-x1)^2+(y2-y1)^2)
Answer:
a)sol...A/Q
x+130=180(Sum of angles on a straight line is 180 degree)
=>x=180-130
=>x=50
Hrnce,the value of x is 50 degree.
b)sol...A/Q
[tex]circumference\ of\ circle=2\pi y\\
2\pi r=2\pi y\\
r= \frac{2\pi y }{2\pi} \\
Hence,r=radius=y[/tex]
