Range: 16 (20 - 4)
Median: 9 (average 8 and 10)
Mean: 9.5 (average all the numbers)
Answer:
36 sq. cm
Step-by-step explanation:
triangle area= 0.5 * 12* 10
rectangle are= 8* 3
60 - 24 = 36
So if 1 person shakes the other 179 people in the meeting then you would multiply 180 times 179 which would equal 32,220 handshakes
So all the angles in total are going to be 180 degrees.
7+9+10 = 18 (parts at all)
180/18=10 (1 part of the ratio)
Than to find all of the angles we multiply 1 part by 7, 9 and 10 separately
10*7= 70 degrees (1st angle)
10*9=90 degrees (2nd angle)
10*10=100 degrees (3rd angle)
Answer: 70, 90, 100
The pen is 
centimeters long when scale is 
inches long and pen is 
shorter then the scale.
How to find the how much long is the pen ?
Scale is 
long and
We know that
And pen is shorten then the scale
So the length of the pen is
Learn more about the length of the pen here :
brainly.com/question/28048541
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