7th Math 3.16

Art--Adam wants to find the distance around this drawing of a circle. It has a radius of 2 cm.

He says the answer must be 2π cm.

Do you agree or disagree with him? Why?

"I (agree / disagree) with Adam because..."

Pi symbol for copy and paste: π

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate

Calculate 1--What is the circumference of this circle? Leave your answer in terms of pi.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate

Calculate 2--What is the circumference of this circle? Use 3.14 to approximate π.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate

Math+Art--Mr. Mancini wants to see how much you know about circles. He tells you to draw then find the distance around a circle that has a radius of 4.5 inches.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate

SPICY--Try if you have time (optional)

Construction--Frodo's uncle built a swimming pool in the backyard. Frodo says the distance around the pool is 120 feet. Is he correct? Prove him right or wrong.

(Hint: you are looking for the total of the blue and green lines)

"I think he is (correct / incorrect) because..."

Pi symbol for copy and paste: π

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate

Circular--Ms. Paul asked you to make a diagram for science that includes a circle with a radius of 7 centimeters.

a) Label the SYW section appropriately.

b) Find the circumference of the circle in your diagram. Leave your answer in terms of π.

"The circumference is..."

**You MUST SYW in formative for credit**

CFS:

#1: Writes the appropriate formula

#2: Accurately substitutes values to calculate