Find the length of the missing side of the right triangle given the area of the two triangles find the length of the sides of the triangle by the area formula. the area of one triangle is 100 sq. in. the other triangles area is 64 sq. in. and the length of the right triangle is whats missing

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

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.

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