
Area of a trapezoid
Presentation
•
Mathematics
•
1st - 5th Grade
•
Practice Problem
•
Easy
Anali Alcantar
Used 11+ times
FREE Resource
10 Slides • 6 Questions
1
2
Draw
Circle your mood of the day so far.
3
4
5
Draw
Can you label the bases and height of this trapezoid
6
it doesn't matter what base is what you can pick which is which.
7
How do we find the area of a trapezoid?
8
we have two ways we can solve for the area of a trapezoid.
Top picture: Shows us we can divide the two bases by 2 after adding base 1 and 2 and multiplying them by the height.
while the bottom picture shows us we can multiply it by 1/2 and still get the same answer.
9
example:
we can take both bases add
them together then divide it
by 1/2 before multiplying
them by the height.
remember you have to
square answer as it is
the area.
10
Lets try it together
11
Draw
Try out what you have learned
12
Here are a few questions about what we have learned
13
Multiple Choice
Which of the following best describes a trapezoid?
A four-sided shape with one pair of parallel sides
A four-sided shape with all sides equal
A three-sided shape with one pair of parallel sides
A four-sided shape with two pairs of parallel sides
14
Multiple Choice
Which of the following are labeled correctly in the diagram of the trapezoid?
base 1, base 2, height
side 1, side 2, diagonal
radius, diameter, height
base, apex, height
15
Multiple Choice
What are the key parts of a trapezoid that you need to identify in order to find its area?
Height and bases
Angles and sides
Diagonals and vertices
Perimeter and radius
16
Thank you for your time
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