The equation in slope intercept form is y= 1x - 70
C. 427
The median is the middle number of all the data
Since there is an even number of data points the median is in between the middle two data points (434 and 420)
To find this: 434-420=14
14/2=7
434-7=427
420+7=427
The answer to your problem is 20 inches.
You only need to know one side, you can use , tan, sin, or cos of the angles to find the other 2 sides.