perimeter, area, find unknown side length

Flashcard
•
Mathematics
•
4th Grade
•
Hard
+1
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is perimeter?
Back
Perimeter is the total distance around the outside of a shape.
2.
FLASHCARD QUESTION
Front
How do you calculate the perimeter of a rectangle?
Back
Add the lengths of all four sides or use the formula: P = 2(length + width).
Tags
CCSS.4.MD.A.3
3.
FLASHCARD QUESTION
Front
What is area?
Back
Area is the amount of space inside a shape, measured in square units.
4.
FLASHCARD QUESTION
Front
How do you calculate the area of a rectangle?
Back
Multiply the length by the width: Area = length × width.
Tags
CCSS.3.MD.C.7B
CCSS.4.MD.A.3
5.
FLASHCARD QUESTION
Front
What is the formula for the area of a square?
Back
Area = side × side or Area = side².
Tags
CCSS.3.MD.C.7B
CCSS.4.MD.A.3
6.
FLASHCARD QUESTION
Front
If the area of a rectangle is 50 square feet and the width is 10 feet, what is the length?
Back
5 feet.
Tags
CCSS.3.MD.C.7B
CCSS.4.MD.A.3
7.
FLASHCARD QUESTION
Front
What is the formula for the perimeter of a square?
Back
Perimeter = 4 × side.
Tags
CCSS.3.MD.D.8
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