Answer:
r = 18 cm
Step-by-step explanation:
Hello
The formula for circumference is 2*Pi*r
So you have the valur for that formula:
2*Pi*r = 36Pi
r = 36/2
Bes regards
. should be a right angle triangle,
. must have 2 sides given
3(n-8)
60
4 = 1
1 = 60
it's angle 1.
Reason:
vertically opposite angles are equal
