Perimeter
Flashcard
•
Mathematics
•
3rd Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for calculating the perimeter of a rectangle?
Back
The perimeter (P) of a rectangle can be calculated using the formula P = 2(length + width).
Tags
CCSS.4.MD.A.3
2.
FLASHCARD QUESTION
Front
If a rectangle has a length of 10 units and a width of 5 units, what is its perimeter?
Back
The perimeter is 30 units, calculated as P = 2(10 + 5) = 30.
Tags
CCSS.4.MD.A.3
3.
FLASHCARD QUESTION
Front
What is the perimeter of a square with a side length of 4 units?
Back
The perimeter of a square is calculated as P = 4 × side length. For a side length of 4 units, P = 4 × 4 = 16 units.
Tags
CCSS.4.MD.A.3
4.
FLASHCARD QUESTION
Front
How do you find the perimeter of a polygon?
Back
To find the perimeter of a polygon, add the lengths of all its sides together.
Tags
CCSS.3.MD.D.8
5.
FLASHCARD QUESTION
Front
What is the perimeter of a rectangle with a length of 15 cm and a width of 10 cm?
Back
The perimeter is 50 cm, calculated as P = 2(15 + 10) = 50.
Tags
CCSS.4.MD.A.3
6.
FLASHCARD QUESTION
Front
If a farmer wants to build a fence around a rectangular area that is 40 feet long and 20 feet wide, how much fencing material does he need?
Back
He needs 120 feet of fencing, calculated as P = 2(40 + 20) = 120.
Tags
CCSS.4.MD.A.2
7.
FLASHCARD QUESTION
Front
What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?
Back
The perimeter is 12 cm, calculated as P = 3 + 4 + 5 = 12.
Tags
CCSS.3.MD.D.8
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