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Questions and Answers
What is measurement?
What is measurement?
- Finding the area of a shape
- Counting the number of sides of a shape
- Finding the amount or size of something (correct)
- Finding the perimeter of a shape
What is the perimeter of a shape?
What is the perimeter of a shape?
- The area of the shape
- The distance around the outside of a shape (correct)
- The distance across the shape
- The number of sides of the shape
Why does Kayla need to measure the perimeter of the dollhouse?
Why does Kayla need to measure the perimeter of the dollhouse?
- To find the volume of the dollhouse
- To prepare the decorations for her dollhouse (correct)
- To find the area of the dollhouse
- To count the number of rooms in the dollhouse
What shape is the door of the dollhouse?
What shape is the door of the dollhouse?
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How many inches of green trim does Kayla need for the door?
How many inches of green trim does Kayla need for the door?
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What shape is the window of the dollhouse?
What shape is the window of the dollhouse?
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How many inches of blue trim does Kayla need for the window?
How many inches of blue trim does Kayla need for the window?
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How do you find the perimeter of a rectangle?
How do you find the perimeter of a rectangle?
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What is the purpose of finding the perimeter of the door and window?
What is the purpose of finding the perimeter of the door and window?
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Why are opposite sides of a rectangle equal?
Why are opposite sides of a rectangle equal?
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Study Notes
Measurement
- Measurement is finding the amount or size of something
- There are many different kinds of measurement and ways to do it
Perimeter
- Perimeter is the distance around the outside of a shape
- Perimeter is found by adding together the length of all a shape's sides
- Examples of perimeter include the lines around the edge of a soccer field and the curb around a parking lot
Perimeter of a Rectangle
- In a rectangle, opposite sides are equal
- To find the perimeter of a rectangle, add the length of all four sides together
- Example: door with sides of 8 inches and 4 inches has a perimeter of 24 inches (8 + 8 + 4 + 4)
Perimeter of a Hexagon
- A hexagon is a shape with six sides
- To find the perimeter of a hexagon, add the length of all six sides together
- Example: window with six sides of 3 inches each has a perimeter of 18 inches (3 + 3 + 3 + 3 + 3 + 3)
Perimeter of an Irregular Polygon
- An irregular polygon is a shape with sides that are not equal to each other
- To find the perimeter of an irregular polygon, add the length of all the sides together
- Example: fence with twelve sides of varying lengths has a perimeter of 133 inches (18 + 20 + 4 + 15 + 15 + 6 + 5 + 4 + 8 + 14 + 4 + 20)
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Description
Understanding measurement concepts, including perimeter, and how to find it in different shapes, especially rectangles.
