*Used for schoolwork, not for commercial purposes.*
Imagine that you are an engineer. You are designing a radio transmission tower that will be 100 m high. It will be supported by cables, called guy wires, as follows:
- The guys wires will be anchored on the ground at three equally spaced locations in a circle around the tower.
- The distance of the anchor points from the base of the tower will be one quarter of the height of the tower.
- There will be five guy wires from each anchor point. The guy wires will be attached to five points on the tower at 20 m intervals, going up.
A. Draw a diagram as if you were looking down at the base of the tower. Show the location of the three anchor points. Explain how you know that the anchor points are equally spaced around the tower, and that they are all the same distance from the base of the tower.
B. How far are the anchor points from the base of the tower?
C. Draw a side view of the tower, showing all the guy wires from one anchor point.
D. Calculate the total amount of guy wire needed. Each guy wire requires 2 m at each end to attach it to the tower and the base. Round your answer to the closest metre. Show all your work.
Follow the examples on p346 #3,4,5
Complete questions on page 346-347
Refer to pages 340, 341, 342, and the practice questions we did in class (p342 #4,5,6).
Complete questions on page 342 #7,8,9,10,11,12, 15
Due February 6th,
You will create a small anchor chart for one of the terms related to the current math unit. Select from the list of terms below. Claim you term by posting a reply indicating the number and term that you’re working on. Do not duplicate anyone else’s term.
- neatly drawn diagram (use appropriate tools such as rulers, markers, etc.)
- tidy printing (cut and paste large font text if you can’t print neatly)
- illustration is error free
- definition is correct, and has no errors in spelling or grammar
- large enough to be read from across the room
- prepared on about 1/3 to 1/2 of a sheet of chart paper
Thursday February 5th Friday February 6th at the beginning of math class.
2. perpendicular bisector
3. opposite angles
4. adjacent angles
5. straight angle
6. supplementary angles
8. corresponding angles
9. co-interior angles
10. parallel lines
11. complementary angles
Create a note for the definitions of all math vocabulary p 338 -339.
Recreate the communication tip on 339 in your notes.
Create a note for the definitions of all math vocabulary on p 340-341.
Recreate the examples in your notes. Draw diagrams that are titled and labelled NEATLY. Use a ruler, or better yet, create this note electronically.
Highlight angles with colours to make the note useful.
Due in first period tomorrow – February 5th.