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Photo Gallery: Pi Day at North Hills Junior High

| Wednesday, April 3, 2013, 9:01 p.m.
Randy Jarosz | For the McKnight Journal
North Hills Junior High School seventh-grader Miranda Derkach does some work on a 'pi quilt' on Pi Day, Thursday, March 14, 2013. The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.
Randy Jarosz | For the McKnight Journal
North HIlls Junior High School seventh-grader 7th grader Greta Zewe calculates the circumference of a pi cookie on Pi Day, Thursday, March 14, 2013. The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.
Randy Jarosz | For the McKnight Journal
North Hills Junior High School seventh-grader Brendan Carney measures the circumference of a glass on Pi Day, Thursday, March 14, 2013. The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.
Randy Jarosz | For the McKnight Journal
Seventh-graders measure the circumference of objects in a science classroom, including a pi cookie, on Pi Day, Thursday, March 14, 2013. The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.
Randy Jarosz | For the McKnight Journal
North Hills Junior High School science teacher Laurie Ahrenholtz discusses a 'pi line' with important historical figures on Pi Day, Thursday, March 14, 2013. The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.

Students at North Hills Junior High School and elsewhere in the world celebrated Pi Day on March 14.

The Greek letter pi is used in mathematics to represent the ratio of the circumference of a circle to its diameter — which is approximately 3.14.

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