A regular octagon has all its eight sides congruent. The line segments joining each of the vertices of a regular octagon to its center are called the radii of the octagon. These 8 radii divide a regular octagon into 8 congruent isosceles triangles. Area of each isosceles triangle is
,
where a is length of the side of the octagon and is the angle between two radii of the octagon.
In regular octagon
.
Then the area of regular octagon is
sq. m.
Answer: sq. m.
Based on the histogram, the interquartile rangle of the distribution is 5 inches.
<h3>What is the interquartile range?</h3>The interquartile range is the difference between the third quartile of a data set and the first quartile of the data set.
First quartile = 1/4 x ( n + 1)
= 101 / 4 = 25.25
25.25 on the histogram is 66
Third quartile = 3/4 x (n + 1)
303 / 4 = 75.75
75.75 on the histogram is 71
Interquartile range = 71 - 66 = 5
Please find attached the image of the histogram. To learn more about histograms, please check: brainly.com/question/14473126
