Square Pyramid Slant Height

Figure Seven: 6' x 6' Square Pyramid with a slant height of 5'

Sketch on Paper (need graphic)

For the Euclidean construction, use your compass and straight edge to construct each of the perpendicular lines. Let 1 foot be represented by half an inch in this model so it will fit on a regular sheet of paper.

Square Base

    • Draw a 3 x 3 inch square in the middle of your paper. Use the 3x5 card to guide you.

Lateral Faces

    • Locate the midpoint of each side of the square. Use your compass to do this step.
    • Use a 3x5 card to draw a guide line from the midpoints perpendicular to each side.
    • Measure and draw 2 inch segments on each guideline (where did this measurement come from?)
    • Connect to form a triangle on each edge of the square.

Create the Physical Model

    • Cut out the net and fold as necessary.
    • Do not glue or tape the edges together unless your teacher tells you to.

Create the Net in SketchUp

Find the Lateral Surface Area and Volume

Step 1 - Find the slant height

Step 2 - Find the area of one triangular face

Step 3 - Find the lateral surface area

Find the Volume

SOLUTIONS