abby5978
24.09.2019 •
Mathematics
In a circle a 45° sector has an area of 32pi cm^2. what is the radius of this circle
a)16cm
b)8cm
c)32cm
d)12cm
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Ответ:
Step-by-step explanation:
It is given that, 45/360 * πr² = 32π
1/8 * πr² = 32π
πr² = 256π
r² = 256
r = √256
r = 16
Ответ:
a square is 360 degrees and cut it in half which is a triangle it would be 180