Area=1/2bh
h=altitude
b=legnth of base
b is 3 times h
b=3h
divide by 3
b/3=h
area=1/2bh
subsitute b/3 for h
54=1/2(b)(b/3)
multiply bothsides by 2/1
108=b(b/3)
108=(b^2)/3
multipy both sides by 3
324=b^2
square root boh sides
18=b
legnth of base=18
Antarctica and asia
I hope this helps
Tyler ate the most. if you put them all in the same fractions Conor ate 1/4, Brandon also ate 1/4, Tyler ate 3/4 and Audrey ate 2/4. if you want to go by percent then Conor and Brandon ate 25% each, Audrey ate 50% and Tyler ate 75% which means there is still 25% or 1/4 of a pizza left