When a three dimensional figure is sliced the ________________________ that is exposed is called a cross section.
two dimensional shape
Create your own definition for surface area.
Surface area is the area of all the faces in a 3D figure.
Cubed
3
The cross section shown in the image is (parallel or Perpendicular) to the base.
Parallel
What is the surface area of the cube?
5 x 5 = 25
25 x 6 = 150
The cube has a surface area of 150 square inches.
What is the volume of the rectangular prism?
105 cm cubed
The cross section of the rectangular pyramid is (parallel / Perpendicular) to the base. The cross section would be a (triangle / rectangle / circle ). The cross section would be ( congruent / similar ) to the base.
Parallel, Rectangle, Similar
What is the surface area of the square pryamid?
square base 5x5 = 25
Triangular face 5 x 9 / 2 = 22.5
4 triangular faces 22.5 x 4 = 90
Total surface area 25 + 90 = 115 square cm
What is the volume of the triangular prism?
144 cm cubed
Rectangle
8 x 5
What is the surface area of the trapezoidal prism?
780 cm squared
What is the volume of the composite figure?
13 x 13 x 30 = 5070
9 x 13 /2 x 30 = 1755
5070 + 1755 = 6825 inches cubed