Vocabulary
A two-dimensional surface that extends infinitely in all directions
What is Plane?
A = lw
What is Area of a Rectangle?
A slice at an angle through three faces is a(n)
What is a triangle?
What is Surface Area?
What is Triangle, Square, Trapezoid, Parallelogram, and Rectangle?
The point where two rays, lines, or line segments meet to form an angle
What is Vertex?
A = 1/2bh
What is Area of a Triangle?
A slice parallel or perpendicular to the base is a(n)
What is a square?
What unit rate is Surface Area supposed to be in?
What is squared?
Suppose you cut a rectangular pyramid by slicing it parallel to its base? What shape do you think the cross-section will be?
What is is rectangle?
A two-dimensional shape that is exposed by making a straight cut through a section of a three-dimensional figure
What is Cross-Section?
SA = 2(wl+hl+hw)
What is Surface Area of a Rectangular Prism?
A slice through all faces is a(n)
What is a hexagon?
Jim put two identical building blocks on top of each other. The dimensions of each block were 2 inches by 2 inches by 4 inches. What is the surface area of the resulting prism?
What is 72 square inches?
SA = 4(2)(8) + 2(2)(2)
= 64+8
=72
What are three different slices through a rectangular prism?
What is parallel to base?
What is perpendicular to base?
What is doesn't have to be either? It can look like a slant slice
A flat representation of a solid when it is "unfolded"
What is Net?
SA = bh + (b1+b2+b3)
What is Surface Area of a Triangular Prism?
A right rectangular prism is 6 cm by 14 cm by 5 cm. What is the surface area of the right prism?
What is 387?
How much wrapping paper would you need to cover a rectangular box that is 18.25 inches by 12 inches by 3 inches if you need 10% more wrapping paper than the surface area of the box? Give your answer to the nearest square inch.
What is 681 square inches?
2(18.25)+2(3)(12)+2(3)(18.25) = 619.5
10%more = 1.1(619.5) = 681.45 = 681
Which of the following cross-sections is not possible when you slice a cube?
Square.
Rectangle that is not a square.
Circle.
Pentagon.
What is a circle?
The sum of the areas of all of the faces of a three-dimensional figure
What is Surface Area?
SA = 2πrh+2πr2
What is Surface Area of a Cylinder?
Johnny slices a right rectangular pyramid with a plane and the cross-section is in the shape of a trapezoid. How does Johnny slices the pyramid?
What is perpendicular to the base but not through the vertex?
The prism has dimensions of 2.5 inches by 3 inches by 3.5 inches. If you were to continue to stack that prism on top of itself, how many would you have to stack to create a new prism with a surface area between 150 square inches and 170 square inches?
What is 4?
What is a Cross with 4 squares down and 3 squares wide?