Question

lesson 12 practice problems

1. give each solid a geometric name. be as precise as you can.

a b c
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Explanation:

• For A: A pyramid is a solid with a polygonal base and triangular faces that meet at a common vertex. Here, the base is a quadrilateral (a four - sided polygon), so it is a quadrilateral pyramid.
• For B: A prism is a solid with two congruent and parallel polygonal bases and rectangular lateral faces. Since the bases are parallelograms, it is a parallelogram prism.
• For C: A pyramid is a solid with a polygonal base and triangular faces that meet at a common vertex. Here, the base is a triangle (a three - sided polygon), so it is a triangular pyramid.

Answer:

A. Quadrilateral pyramid
B. Parallelogram prism
C. Triangular pyramid