You can
put this solution on YOUR website!Original dimensions of the triangle are 15 in and 12 in
Area in this case = (1/2)*15*12
= 90 sq in
Dimensions of the new triangle are 5 in and 4 in
Area in this case = (1/2)*5*4
= 10 sq in
Now ratio of the areas = 90:10
= 9:1
Ratio of the sides = 15:5 and 12:4
= 3:1 and 3:1
So we find that the ratio of the areas is the square of the ratio of the sides
Good Luck!!!