if 31.4r² is 10.2 bigger than 3.14r² then 31.4r²=10.2+3.14r² minus 3.14r² from both sides 28.26r²=10.2 divide both sides by 28.26 r²=0.36093418259023354564755838641189 squaer root both sides r=0.60077798111301777772277024274837 about 0.6 units
If there were no bacteria on earth everything that lives and breaths will cease to exist, No water, no trees, no birds, no air, no humans. everything will be gone the earth would just be lifeless
