monday, february 27 th
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Monday, February 27 th. Warm Up. 1. 2. What is the volume of a cube that has side lengths of 6 cm. How many feet are in 3 miles?. Please Complete Warm Up and write down your homework . Week at a Glance. Today: Volume of cones and pyramids Tuesday: NO MATH OR SCIENCE - PowerPoint PPT PresentationTRANSCRIPT
Monday, February 27th • Please Complete Warm Up and write down
your homework
WARM UP1.
2. What is the volume of a cube that has side lengths of 6 cm
How many feet are in 3 miles?
Week at a GlanceToday: Volume of cones and pyramids Tuesday: NO MATH OR SCIENCE Wednesday: Spatial Reasoning (Views of cubes) Thursday: Review Games including study guide!Friday: Interim Review Due and TEST on 3-D figures
Joke of the Day What do you call a penguin in the desert?
LOST
Weekly Review Answers
1 week till the INTERIM!!!
FORMULA SHEET
a=Bh
Rectangular Prism: l x w
Cylinder Prism: π 𝒓 ²
What is It?!?!
•Volume- The number of cubic units needed to ____________ a
space
•Volume is measured in:
FILL
CUBIC UNITS
Surface Area Vs. Volume
Surface Area Volume
Name the geometric solids that belong to each net.
3-D Shape Review
Question
What is a 3-D shape that has 5
FACES
Answer
Pyramid
Which of the nets below could be used to form a pyramid like the one below?
Question
Answer
B
Alexis has two solid figures. One is a cube, and one is a square pyramid. What do the two figures have in common?
a. They both have one rectangular face.b. They both have one triangular face.c. They both have exactly six faces.d. They both have at least one square face.
Question
Answer
D
Question
Is a cylinder a polyhedron?
Answer
NO
Question
Is a triangular prism a polyhedron?
Answer
YES
12 in²
12 in²
30 in²
WHAT IS THE SURFA
CE AREA
Question
Answer
54
Question
Is a Cone a polyhedron?
Answer
NO
Question
Is a pyramid a polyhedron?
Answer
YES
Goal for today
Volume
Cones &
Cylinders
Pyramid &Cone
v=1/3BhWhat does this
formula look like?
Important Comparisons
• A Cone is 1/3 the size of a Cylinder with
the same Base.• A Pyramid is 1/3 the size of a Prism with
the same Base.
v=1/3Bh
B= Base Base depends on what kind of base the shape has:Rectangular Pyramid: l x w Triangular Pyramid: 1/2bh
Pyramid
Practice Problems
http://my.hrw.com/math06_07/nsmedia/homework_help/msm2/msm2_ch10_03_homeworkhelp.html
v=1/3Bh
B= Base Base= circle Base=πr²
Cone
Practice Problems
http://my.hrw.com/math06_07/nsmedia/homework_help/msm2/msm2_ch10_03_homeworkhelp.html