Final Grades
Geometry
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While I have entered the semester final, I am still in the process of entering other grades, extra credit, etc. I will make another post here when I have finished and grades have been finalized.
Making Your 3-D Object
Geometry
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As you assemble your 3-D object by cutting out the net, you might be puzzling over how to make a good base that looks like a regular polygon (especially if you chose to use a base with more than 4 sides). A protractor is your friend here. You have learned earlier in the year how to calculate a single interior angle of a regular polygon, so put that knowledge to use and find the measure of one interior angle of your base.
Make sure to use a material that is more sturdy than paper for your physical object. Please attempt to make the spike as sturdy as possible. How else will I be able to impale next year's students upon the door? Just kidding, but do make it stable so it can stand the test of time!
If you're not making a cone, then all of your lines should be drawn with a straight edge. If you are making a cone, getting a good looking net can be a little difficult. You can use the first way here to make the spike without spending too much time on the perfect net.
For inspiration, here's one of the top impalers of all time*:
*edited for appropriateness, original credit to Jake Likes Onions
Make sure to use a material that is more sturdy than paper for your physical object. Please attempt to make the spike as sturdy as possible. How else will I be able to impale next year's students upon the door? Just kidding, but do make it stable so it can stand the test of time!
If you're not making a cone, then all of your lines should be drawn with a straight edge. If you are making a cone, getting a good looking net can be a little difficult. You can use the first way here to make the spike without spending too much time on the perfect net.
For inspiration, here's one of the top impalers of all time*:
Semester Review Solutions
Geometry
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For the Ch 7 & Ch 8 Review - definitely give problems 12,13,18-21 from Ch 7 and 10-27 from Ch 8 a try. You can find answers here. Remember, we did no do sections 7.5, 7.6, 8.5 or 8.6 so skip those problems!
Here are the solutions to the semester practice final! Below are a few corrections to those solutions.
Here are the solutions to the semester practice final! Below are a few corrections to those solutions.
#6 the answer should be D
#17 the question should read" What is the area of an equilateral triangle with side length 10?"
#23 the answer should be C
On test day, do not have your phone out at any point in time, from the moment you enter the room until you leave. I recommend leaving it in your locker. Your calculator memory will be cleared. When this happens, your calculator will reset into Radian Mode. Make sure you change it back to Degree Mode.
If you do not turn in your book during finals, you must turn it in on Tuesday. You can find me in room 351 after school and can turn it into me there if you are missing class to make up a final.
Hall Passes
I will be collecting your hall passes for the semester before the final exam starts. Make sure you have yours in class to turn in! No passes will be issued to get it, no late passes will be accepted. You will also need to turn in your book before the final exam starts.
Surface Area Flip Book & Volume of Composite Solids
Geometry
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Take a look at the solutions to the Volume of Composite Solids.
As requested, here is a list of answers to the Surface Area portion of the flip book.
9) 846 sq mm
10) 662.4 sq ft
11) 352.5 sq cm
12) 1583.4 sq km
13) 138 sq m
14) 384 sq yd
15) 225.5 sq in
16) 648 sq ft
17) 197.3 sq m
18) 1,330 sq km
As requested, here is a list of answers to the Surface Area portion of the flip book.
9) 846 sq mm
10) 662.4 sq ft
11) 352.5 sq cm
12) 1583.4 sq km
13) 138 sq m
14) 384 sq yd
15) 225.5 sq in
16) 648 sq ft
17) 197.3 sq m
18) 1,330 sq km
First Spikey Door Project Deadline
Geometry
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The first project deadline looms close (Tuesday, June 13th), so I wanted to clarify what I am looking for. You need to show me your scaled drawing (the 3D version and the net). You don't need your surface area or volume calculations yet. However, you will want to make sure your surface area and volume fall within the specified parameters . Though you should be able to calculate the surface area of your spike, you can use the following links to help you calculate the volume of your solid.
Remember, you may not use these measurements for your own spike!
Don't forget to print off a copy of the rubric to submit with your project! Grab it here!
Below, you can see an example of some sample work. This work is fairly neat and well organized. They have drawn the net and shown the calculations for surface area broken down into lateral surface area (LSA), base area, and then total surface area (TSA). Make sure to leave room for your volume calculations and . You can also see the scaled 3-D drawing using perspective and labels.
Remember, you may not use these measurements for your own spike!
Don't forget to print off a copy of the rubric to submit with your project! Grab it here!
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