Answer:
r = 24.41cm
Step-by-step explanation:
If you're only trying to find the radius, use the equation:
When rearranged to make r the subject:
When the variables are added:
9.97 i think
8n=8×5=40
..............
We know angle x=y(vertically opposite angles)
Since 3 angles lie on a straight line,
y+60+70=180 (linear pair)
y+130=180
y=180-130
y=50 degrees
