(1)BC^2=AB^2+AC^2=2(3√2)^2=36
BC=6 BC边上的高为3
∵DE是过重心的BC的平行线 PM⊥BC
∴PM的长为1
(2)DB=AB/3=√2
DP=x-1 PE=6-x-1 =5-x
PF=(x-1)√2/2 PG=(5-x)√2/2
y=(x-1)√2/2 *(5-x)√2/2=(x-1)(5-x)/2
∴y=(x-1)(5-x)/2 (1
(1)BC^2=AB^2+AC^2=2(3√2)^2=36
BC=6 BC边上的高为3
∵DE是过重心的BC的平行线 PM⊥BC
∴PM的长为1
(2)DB=AB/3=√2
DP=x-1 PE=6-x-1 =5-x
PF=(x-1)√2/2 PG=(5-x)√2/2
y=(x-1)√2/2 *(5-x)√2/2=(x-1)(5-x)/2
∴y=(x-1)(5-x)/2 (1