Answer:
15.22
Step-by-step explanation:
The equation of the circumference of a circle is 2(pi)r
This is actually because 2pi is angle of the arc that makes up the full circle (radians of course)
so a simple formula is:
arc length in radians X radius
radius = 4 cm
the area that the question wants is the oposite
of the 142 degree section so 360 - 142 = 218
218 degrees * (pi/180) = 3.80482 rad
3.80482 * 4 = 15.21928 cm
Answer:
8.4 , 7.7
Step-by-step explanation:
- 0.7
Answer:
50 499/1000
Step-by-step explanation:
50.499
There are 3 digits after the decimal
Our denominator is 1 with 3 zero's 1000
50 499/1000
Step-by-step explanation:
here
-11r ≥ 220
-11r/-11 ≥ 220/-11 (dividing both side with -11 to eliminate -11 )
r ≥-20
