Pi Day Maths Area and Circumference of Circles

Pi Day Maths Circle Area and Circumference. This is a fun circles resource, perfect for Pi Day!
The questions involve using the area and circumference of circles formulas to find the area, circumference, radius or diameter when given one of these measurements.
Students use calculators to solve the clues and find the corresponding circle and alphabet letter for each clue.
The letters form an anagram and can be unscrambled to make a word containing “pi”.
All answers are included.

✎ Contents:
This resource includes:
• A circles key sheet.
• 7 worksheets – each with a secret code.
• Teachers notes.
• All answers.

✦ Objectives:
This resource has been designed to practice:
• Finding the area of a circle from the radius or diameter
• Finding the circumference of a circle from the radius or diameter
• Working backwards to find the radius and diameter of a circle when given the area or circumference

✽ Directions:
Print out a circles key sheet and the 7 secret code worksheets for each student.
There are 2 versions so that you can print in black and white or colour.

✦ Notes:
All answers are included, so you can easily mark students work.
These questions should take at least an hour for students to complete.

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