On Monday, Mr. Dickens asked his class how many books they read last month and set up a dot plot showing
the information. On Tuesday, Walter joined the class and his information was added to the
What is the best measure of center for the given graphs?
Standard Deviation
Interquartile Range
Mean
Median

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perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

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