Answer:
the measurements will be wrong because they are overlapping each other. he needs to line them up correctly and measure that way
There are total 10 right angles in the given diagram, hence option (b) is correct match.
<em>Refer the attached image for clarification. </em>

midpoint = (2, 4 )
using the midpoint formula
midpoint = [
(1 + 3 ),
(2 + 6 )] = (2, 4)
The y intercept is 3 then do y/x so go up one over 3 for each other point
Mean is when you add up all the numbers, then divide by how many numbers there are
<span>39 + 43 + 46 + 86 + 22 + 39 + 75 = 340
340 </span>÷ 7 (because there are 7 numbers) = 48.57