The length of the base of a triangle is twice its height. If the area of the triangle is 100 square kilometers, find the height

Question

I really have no idea where to start with word problems they just always confuse me and I really have no use for them all they do is hold me back

Answer 1

h=height

2h=base

A=(1/2)*b*h

100=(1/2)*2h*h

100=h²

√100=√h²

10=h, the height

h=10 km

check:1/2*20*10=1/2*200=100