Angle B corresponds to ANGLE E.
You can simply tell by looking at the letters that are arranged.
ΔA<u>B</u>C = ΔD<u>E</u>F
Hope this helps
The question above makes use of the concept of ratio and proportion in a form of scaling. If we let x and y be the true length and width, the equations that best describe them are,
0.5 cm / 1 inch = 2.5 cm / x in ; x = 5 in
0.5 cm / 1 inch = 4.75 cm / y in ; y = 9.5 in
Therefore, the true length and width of Rueben's flag is 5 in and 9.5 in, respectively.
There are 4 ounces left because 1/4 is 4 and 3/4 would be 12. 16-12 = 4