Area Vocabulary
Surface Area Vocabulary
Area of polygons
Surface Area and Nets
Surface Area and nets
100
What is name of the bottom of a 2-d or 3-d shape? The bottom is the _____ of the figure.
Base
100
The bottom surface of a 3-d figure is it's _____. 3-d figures are named from their _____.
Base
100
How much paint is needed to paint a billboard that is 48 feet long and 14 feet high?
672ft2
100
Find the surface area
468 m2
100
What am I?
Clue 1: This net consists of 3 rectangles and 2 triangles.
Clue 2: The triangles serve as the bases, and the rectangles form the lateral faces.
Triangular Prism
200
The flat surface of a 3-d figure.
Face
200
A 3-d figure with a square base that comes to a point at its top.
Square Pyramid
200
What am I?
Clue 1: This net consists of 4 triangles and 1 square. Clue 2: The square serves as the base, and the triangles meet at a single point.
Square Pyramid
200
What am I?
Clue 1: This net is made up of 1 hexagon and 6 triangles.
Clue 2: When assembled, the hexagon forms the base and the triangles form the bases.
Hexagonal Pyramid
300
What makes a 900 angle with the base of a 2-d figure? The _____ is the distance from the top of a figure to it's base.
Height
300
A 3-d figure made up of 6 rectangular faces. It has a surface at its top.
Rectangular Prism
300
What is the formula for area of a triangle?
bxh/2
300
Find the surface area
216 ft2
300
How much wrapping paper is needed to wrap the gift below?
10 x 10 = 100
12 x 10 divided by 2 = 60
100 + 60 + 60 + 60 +60 = 340 cm2
400
The line where two surfaces or faces meet on a 3-d figure.
Edge
400
A figure with a triangular base and three rectangular faces. It comes to an edge at it's top.
Triangular Prism
400
How do you find the height of a triangle that does not have a 90 degree angle?
Draw a perpendicular line from the base to its highest point.
400
Use the net to find the surface area of the solid below.
Square base (36) + Each triangle (27) (include all four)
36 + 27 + 27 + 27 + 27 = 144 ft2
36 + (4 x 27) = 144 ft2
400
Darianis is building a model skate park she starts by making a plastic ramp below.
How much plastic is needed to build the model ramp below?
Front rectangle (90) + Right Rectangle (72) + Left Rectangle (54) + Top Triangle (24) + Bottom Triangle (24)
90 + 72 + 54+ 24 + 24 = 264 cm2
500
The place where two lines meet on a 2-d figure. The place where two or more edges meet on a 3-d figure.
Vertex
500
A 3-d figure made up of four triangular faces that comes to a point at its top.
Triangular Pyramid or a Tetrahedron
500
How do you find the area of an irregular shape?
Split it into triangles, squares, and rectangles. Find the area of each piece and add them together!
500
Maddie bought a gift for her friend. She wants to place the gift in a package with the length of 9 inches, width of 12 inches, and height of 4 inches. Then she wants to wrap the gift. What is the surface area of the package?
All the sides =
12 x 4
12 x 9
9 x 4
Then multiply each by two because they each have a matching side.
384 m2
500
How much paint is needed to paint the statue below?
Credit: https://www.slideshare.net/Kim199/surface-area-of-triangular-prism-1
Front Triangle (49.5) + Back Triangle (49.5) + Left Rectangle (192) + Right Rectangle (192) + Bottom Rectangle (144)
49.5 + 49.5 + 192 + 192 + 144 = 627 m2