1. HW: PEMDAS #2 (extra credit)
Friday, 3/17/17
Write the IC and HW in your planner.
IC: Ch. 8 day 2
HW: PEMDAS #2 (extra credit)
Materials
Pencil/Grading pen
Slate/marker/eraser
Math folder
PEMDAS practice 1 1 1 1 1

2. Bellwork 28 m 2 m 1. Based on the picture above, what is the radius?
2. Based on the picture above, what is the diameter?

3. Mathematical Relationship
Object
Measured
Distance across
(diameter)
Distance around
(circumference)
Mathematical Relationship
Between the numbers
Black container
10.5 cm
35.3 cm
Red Lid
12.1 cm
39.3 cm
Chargers cup
8cm
25.9 cm
3.36
3.25
3.24

4. Bellwork 9 m C  3•d C  3•d C  3•9 C  3•12 C  27 m C  36 cm 12 cm
3. What is the approximate circumference of the circle above?
4. What is the approximate circumference of the circle above?
C  27 m
C  36 cm

7. Bellwork C ≈ 24 cm C  3•d 8 cm 24  3•? 24  3•d 3 3 8  d
5. What is the approximate diameter of the circle above?
8  d
The diameter is about 8 cm.

8. Let’s cement this in…
On your slate, please explain how someone can find the circumference of a circle without measuring the distance around (like we did yesterday).

9. 36
Area is the amount of square units it takes to cover a region.
The area is about 48 squares.

10. Cut the circle into 4 pieces by cutting on the solid black lines.