Question

Circle A has a circumference of

Answer 1

#Circle A

$\\ \bull\tt\longmapsto 2πr=16$

$\\ \bull\tt\longmapsto 2(3.14)r=16$

$\\ \bull\tt\longmapsto 6.28r=16$

$\\ \bull\tt\longmapsto r=\dfrac{16}{6.28}$

$\\ \bull\tt\longmapsto r=2.6units$

#Circle B

$\\ \bull\tt\longmapsto πr^2=25$

$\\ \bull\tt\longmapsto r^2=\dfrac{25}{π}$

$\\ \bull\tt\longmapsto r=\sqrt{\dfrac{25}{π}}$

$\\ \bull\tt\longmapsto r=\dfrac{5}{\sqrt{π}}$

$\\ \bull\tt\longmapsto r=\dfrac{5}{\sqrt{3.14}}$

$\\ \bull\tt\longmapsto r=\dfrac{5}{1.74}$

$\\ \bull\tt\longmapsto r=2.94units$

Circle B has bigger radius