A cylindrical storage tank has a conical bottom to facilitate drainage. One particular tank design specifies a radius of R, a total height of 4R, and the height of the conical bottom to be R. Write an m-file function tank_volume. m that calculates the volume of liquid in such a tank if the liquid level is h.

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.