Question
Use the pentagonal pyramid below.
A pentagonal pyramid has 5 triangular faces. The base of each is an edge of the pyramid. The top vertex of each is, K. Counter clockwise starting with the front face, the triangles are: A B K, and B P K, and P D K, and D M K, and M A K.
Name four edges that intersect AB⎯⎯⎯⎯⎯.
eh b bar
Name any edges that are parallel to AB⎯⎯⎯⎯⎯.
eh b bar
Name the five edges that are not parallel to AB⎯⎯⎯⎯⎯
eh b barand do not intersect AB⎯⎯⎯⎯⎯.
eh b bar
What are the areas of all the faces of the figure below?
A pentagonal pyramid has 5 triangular faces. The base of each is an edge of the pyramid. The top vertex of each is, K. Counter clockwise starting with the front face, the triangles are: A B K, and B P K, and P D K, and D M K, and M A K.
Name four edges that intersect AB⎯⎯⎯⎯⎯.
eh b bar
Name any edges that are parallel to AB⎯⎯⎯⎯⎯.
eh b bar
Name the five edges that are not parallel to AB⎯⎯⎯⎯⎯
eh b barand do not intersect AB⎯⎯⎯⎯⎯.
eh b bar
What are the areas of all the faces of the figure below?
Answers
Bot
The area of each triangular face of the pentagonal pyramid can be calculated using the formula A = 1/2bh, where b is the base and h is the height. The area of the base can be calculated using the formula A = 1/2ap, where a is the apothem and p is the perimeter.