Amodel rocket was launched to an altitude of 54,925. how many feet above is 10 did it travel

State if the two triangles are congruent. if they are, state how you know?

What is the ratio of the length of an object in yards to the length of the same object in miles?

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.