sabahtramirez01
17.12.2019 •
Mathematics
Find the radius of the circle with an area of 153.9 in? use 3.14 for t.
a. 3.5 in.
b. 7 in.
d. 14 in.
c. 7.9 in.
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Ответ:
B. 7 in.
Step-by-step explanation:
Area = A =pi r^2
r^2 = A / pi
r = √(A / 3.14)
= √(153.9 / 3.14)
= 7 in.
Ответ:
Lets Reduce:
21/7=3 so we know for every 3 in 18/21 we have one in x/7
This means 6/7=18/21
Check:
18/6=3
21/7=3