Answer:
=50.29
Step-by-step explanation:
The perimeter of a circle is also called the circumference
C = 2 * pi *r
25 1/7 = 2 * 22/7 *r
Rewriting as an improper fraction on the left
(25*7 +1)/7 = 44/7 *r
176/7 = 44/7 r
Multiplying each side by 7/44
7/44 *176/7 = 7/44 *44/7 r
4 = r
We can now find the area by
A = pi r^2
A = (22/7) * 4^2
A = 22/7 * 16
=352/7
Rounding to the nearest hundredth
=50.29
100 divided by 21 is 4.7619047619 what can round to be 4.76
Answer:
80
Step-by-step explanation:
40 is 100
32 is x
100*32/40=80
The slope is 3/1, so it simplifies to 3
