8) Angle DMV = 110 degree

9) Angle AME = 180 degree

10) Angle AMC = 90 degree

11) The end points are C(2, 9) and D(-2, -9)

Now The midpoints can be find using midpoint formula, then

midpoint = [ (2 + (-2))/2 , (9 + (-9))/2 ]

midpoint = [ (2 - 2)/2 , (9 - 9)/2 ]

midpoint = [ (0)/2 , (0)/2 ]

midpoint = [ 0 , 0 ]

Length of the segment is

length = √(- 2 - 2)^2 + (- 9 - 9)^2

length = √(- 4)^2 + (- 18)^2

length = √16 + 324

length = √340

length = 18.44

12) The end points are E(4, -8) and F(-6, 6)

midpoint = [ (4 + (-6))/2 , (-8 + 6)/2 ]

midpoint = [ (-2)/2 , (-2)/2 ]

midpoint = [ -1 , -1 ]

length = √(- 6 - 4)^2 + ( 6 + 8)^2

length = √(-10)^2 + (14)^2

length = √100 + 196

length = √296

length = 17.21

13) angle TEA = 70 degree

angle TEF = ?

angle FEA = ?

As EF is bisecting the angle then

angle TEF = 35 degree

angle FEA = 35 degree

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