<em><u>Using</u></em><em><u> </u></em><em><u>mid</u></em><em><u> </u></em><em><u>point</u></em><em><u> </u></em><em><u>formula</u></em><em><u>.</u></em>
In which we have
Q(-4,5)=(6+x/2) , (2+y/2)
-4=6+x/2 and 5 =2+y/2
-8=6+x and 10=2+y
x=-14 and y=8
Therefore the required value of R{-14,8}
Acute angle: measure between 0 degrees and 90 degrees
Right angle: measure is 90 degreas
Obtuse angle: measure between 90 degrees and 180 degrees
Straight angle: measure is 180 degrees
I got:
37 times 3.79 = 140.23
You may need to verify.
You haven't included enough information for the question, but assuming that a and b are the same then a is 4 and b is 4
Total of 7 packs. 12 pencils in a pack. 7x12 = 84