2D Shape Areas
How do you find the Area of a square/rectangle?
base x height or length x width
What is the name of this polygon?
Pentagon
What is the name of this 3D shape?
Pentagonal Pyramid
Surface area is closely like: A. wrapping a present or B. filling a box
A. wrapping a present
Volume is how much ___ a shape takes up.
space
What is the area of the triangle?
42
How many sides does an octagon have?
8
What is a face?
The flat side of a shape
Add them all together to get the total surface area
What is the net of this 3D shape?
*Draw on board*
When finding the area of a triangle, why do you need to multiply by 1/2 (or divide by 2)?
Because a triangle is half of a rectangle or square
What is the name of this polygon?
Hexagon
What is an edge?
Where 2 faces meet
What is the shape this net makes?
Rectangular Prism
What is this 3D shape?
Triangular Pyramid
What is the area of the parallelogram?
23.8 or 23 4/5
How many sides does a Heptagon have?
7
What is a Vertex/Vertices?
Where 3 or more edges meet
What is the net of this Square Pyramid?
*Draw on board*
What is the volume of this rectangular prism?
Volume: area of base x height
315
What is the area of the trapezoid?
Area: 1/2 x height x (base 1 + base 2)
128
When finding the area of polygons, we want to divide it into _____. Once we find the area of one triangle, then you multiply by the _______.
Triangles, number of sides/ number of triangles
What is the difference between a prism and a pyramid?
A prism has 2 parallel bases, and a pyramid only has one. Also, a pyramid meets at a point, and a prism does not. Lastly, a Prism has rectangular faces that meet at the bases, and a Pyramid has triangular faces that meet at the base.
What is the surface area of this triangular prism?
221.4
True or False: I can find volume by base x height
False, you find volume by the area of the base and then multiplying it by the height