day 6 circumference
Post on 26-Jul-2015
293 Views
Preview:
TRANSCRIPT
Day 6 Circumference.notebook
1
April 15, 2013
Do NowAIM: Circumference of a Circle
A computer technician from Tech Aids is helping you setup your new home computer. The technician needs to download and setup three pieces of software. The size of the software files are 90.5 MB (megabytes), 271.5 MB, and 447 MB.
The download time of the first piece of software is shown below:
If the rate of download is the same for the other two pieces of software, approximately how much time will it take the technician to download all three pieces of software?
A 7 minutesB 9 minutesC 11 minutesD 24 miuntes
Day 6 Circumference.notebook
2
April 15, 2013
Bring 2 Sharpened Pencils Friday
Day 6 Circumference.notebook
3
April 15, 2013
Anticipatory Set: Fill the What I Know and What I Want to Learn sections of the following KWL Chart based on your knowledge of finding the circumference of a circle.
What I Know What I Want to Learn What I Learned
Day 6 Circumference.notebook
4
April 15, 2013
Circumference of a Circle Formulas
QUESTION: What is the relationship between the radius and diameter of a circle?
1.) C = πd
2.) C = 2πr
Day 6 Circumference.notebook
5
April 15, 2013
Find the circumference of the following circle. Use the Pi Button and round your final answers to the nearest hundredth.
7 yd
1
Day 6 Circumference.notebook
6
April 15, 2013
Find the circumference of the following circle. Use the Pi Button and round your final answers to the nearest hundredth.
13 cm
2
Day 6 Circumference.notebook
7
April 15, 2013
Radius = 153 m
3
A 153
B 306
C 76.5
D 151
mmmm
Find the circumference and leave the answer in Pi notation.
Day 6 Circumference.notebook
8
April 15, 2013
Diameter = 2053 m
Find the circumference and leave the answer in Pi notation.
4
A 2053
B 1026.5
C 4106
D 513.25
mm
mm
Day 6 Circumference.notebook
9
April 15, 2013
QUESTION: Determine a method to find the radius or diameter if you are given the circumference. Explain your method.
Example: The circumference is 56 inches, what is the radius?
Day 6 Circumference.notebook
10
April 15, 2013
If the circumference of a circle is 56 inches, find the length of the radius and the diameter. Use the Pi Button and round your final answers to the nearest tenth.
Radius = _____
5
Day 6 Circumference.notebook
11
April 15, 2013
The circumference of the Superdome in New Orleans is 2135.2 feet. Find the length of the radius and the diameter of the Superdome. Use the Pi Button and round your final answers to the nearest tenth.
Diameter = ______
6
Day 6 Circumference.notebook
12
April 15, 2013
The circumference of a circle is 30π inches. Find the radius and diameter.
Radius = _____
7
Day 6 Circumference.notebook
13
April 15, 2013
BEFORE YOU LEAVE
Go back to the KWL Chart in the Anticipatory Set and fill in the What I Learned section.
Day 6 Circumference.notebook
14
April 15, 2013
Homework: On Core Page 114 #1-3, 5-9 (Use Pi Button)
Mr. Tjersland's Math 7
Day 6 Circumference.notebook
15
April 15, 2013
Circumference of a Circle Formulas1.) C = πd2.) C = 2πr
AIM: Circumference of a Circle
Find the circumference of the following circle. Use the Pi Button and round your final answers to the nearest hundredth.
13 cm
Day 6 Circumference.notebook
16
April 15, 2013
AIM: Circumference of a Circle
Circumference of a Circle Formulas1.) C = πd2.) C = 2πr
If the circumference of a circle is 56 inches, find the length of the radius and the diameter. Use the Pi Button and round your final answers to the nearest tenth.
Radius = _____
top related