A lamp is perfect... Measure length and width and multiply them together...
Find the ratio of the known sides.
6/4 = 1.5
The larger triangle is 1.5 times larger than the smaller one.
Area is in square units, so to find the area of the larger triangle square the ratio and multiply that by the area of the known triangle.
1.5^2 x 40 = 90 square cm.
I think this is the answer
A)Cathy had $6 at first
B)Selena has $24 at first
