opposite angles are equal
so <B = <D = 145
Answer
B. 145
If that ratio holds true, then 100 drops is precisely one tenth ounce of liquid.
X^3 + h^3 - 3x-3h - x^3 +3x h^3 - 3h h^2 - 2h
------------------------------------- = ------------------ =
h h
3/4 < 33/40 because 30/40 < 33/40
1 , 2 , 7 and 14
hope this helps you