Step-by-step explanation:
the circumference of a circle is
C = 2×pi×r
with r being the radius.
the square side length is 22 cm. so, the circumference or perimeter of the square (and therefore the length of the wire) is
4×22 = 88 cm.
now, it is the same wire of the same length that is now forming a circle.
so, the circumference of the square is also the circumference of the circle.
therefore,
88 = 2×pi×r
44 = pi×r
r = 44/pi = 14.00563499... cm
so, rounded, radius = 14 cm.
One thing for sure it is not b,d,c its a
4 is 20% of 20. Hope this helps!
<span>(2x – 1)(x + 7) = 0
2x-1=0
2x=1
x=1/2
x=0.5
x+7=0
x= -7
</span>
If you subtract 2.8 from 0.92, you will get 1.88
