I need help to classify the solid figure. Lesson 9: Three-Dimensional Figures CE 2015
Math 7 B Unit 2: Measurement
Assessment
1) cone
2) rectangular prism
3) rectangular pyramid
4) cone
5) 7
And always remember my motto “ teef are not a requirement”
The answers are:
1.B
2.A
3.B
4.A
5.D
The is for connexus users only
Apple is right but the 4th one is cone so :)
4 is wrong
b
a
b
c
d
it's a polyhedron
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Teef are not a requirement is correct!
To classify a solid figure, you need to consider its properties such as edges, faces, and vertices. Here's how you can do it:
1. Start by identifying the characteristics of the solid figure you are trying to classify. Look at the figure and count the number of edges, faces, and vertices it has.
2. An edge is where two faces meet. Count all the straight lines where the faces connect. For example, a cube has 12 edges.
3. A face is a flat surface of the figure. Count all the flat surfaces on the solid figure. For example, a cube has 6 faces.
4. A vertex is a point where edges intersect. Count all the points where the edges meet. For example, a cube has 8 vertices.
5. Once you have determined the number of edges, faces, and vertices, use these values to match the properties to a specific three-dimensional figure. There are many solids with different combinations of edges, faces, and vertices, so comparing them will help you classify.
6. Refer to your math textbook or a reliable online resource that provides information on the different three-dimensional figures. Look for figures with the same number of edges, faces, and vertices as the one you are classifying.
7. Match the properties of your solid figure to one of the known figures. If you find a match, then you have successfully classified the solid figure.
Remember to double-check your work and ensure you count correctly. Practice with different examples to improve your understanding of solid figure classification.
1.a
2.a
3.b
4.b
5.a