Question

1. practice: organizing information fill in the blanks to define a pyramid and its parts. a pyramid is a ____ made of one polygon base, a point not on the same plane, and all the __ between them. • bases: one __ face (like a bottom) • lateral faces: all __ that meet at the same point (like sides) • altitude: the line segment whose length is the __ of a pyramid 13) practice: organizing information complete the chart to compare pyramids. 17) fill 14) practice: making mental images and drawing inferences fill in the blanks. compare a line segment to a pyramid • line segment: two points and all the __ between them • pyramid: a polygon and a point not on the same plane and all the ____ between them 15) practice: using visual cues a pyramid is named for its base. identify the polygon base. then name the pyramid.

Explanation:

Step1: Define a pyramid

A pyramid is a polyhedron made of one polygon base, a point not on the same plane, and all the line - segments between them.

Step2: Identify parts of a pyramid

• bases: one polygon face (like a bottom)
• lateral faces: all triangular faces that meet at the same point (like sides)
• altitude: the line segment whose length is the height of a pyramid

Step3: Compare regular and irregular pyramids

• base of regular pyramid: regular polygon
• lateral faces of regular pyramid: congruent triangles
• vertex of regular pyramid: centered over base
• altitude of regular pyramid: through center

Step4: Compare line - segment and pyramid

• Line segment: two points and all the points between them
• Pyramid: a polygon and a point not on the same plane and all the line - segments between them

Answer:

1. polyhedron; line - segments; polygon; triangular faces; height
2. regular; congruent; centered; center
3. points; line - segments