a=............ t=1.75 l=4375 berapakah alas segitiga tersebut

LΔ=1/2×a×t
4375=1/2×a×1,75
4375=0,875a
a=4375/0,875
a=5000cm

Luas segitiga:
1/2 × alas×tinggi
= 1/2×alas×1.75
=0,875
4375:0,875
=5000 cm²