What shapes are formed by cross sections parallel to the base of a square pyramid? A similar triangles B similar squares C triangles of the same size D squares of the same size

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

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.