What is the definition of perimeter?
Perimeter

Flashcard
•
Mathematics
•
3rd Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The perimeter is the distance around the outside of a shape.
2.
FLASHCARD QUESTION
Front
How do you calculate the perimeter of a rectangle?
Back
To calculate the perimeter of a rectangle, add the lengths of all four sides or use the formula P = 2(length + width).
3.
FLASHCARD QUESTION
Front
What is the perimeter of a square with a side length of 5 cm?
Back
The perimeter of a square is calculated as P = 4 × side length, so P = 4 × 5 cm = 20 cm.
4.
FLASHCARD QUESTION
Front
What is the formula for the perimeter of a triangle?
Back
The perimeter of a triangle is the sum of the lengths of its three sides: P = side1 + side2 + side3.
5.
FLASHCARD QUESTION
Front
If a shape has a perimeter of 30 m and one side is 10 m, what is the sum of the other sides?
Back
The sum of the other sides is 30 m - 10 m = 20 m.
6.
FLASHCARD QUESTION
Front
What is the perimeter of a circle called?
Back
The perimeter of a circle is called the circumference.
7.
FLASHCARD QUESTION
Front
How do you find the circumference of a circle?
Back
The circumference of a circle can be found using the formula C = 2πr, where r is the radius.
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