Hank, Mark, and John are located at the vertices of a right triangle. Hank is located at the right angle and John is located at a 35 degree angle.
C
Mark
47 ft
Hank
John
To the nearest tenth, how far is John from Mark if Mark is 47 feet from
Hank?

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.