A triangle has the vertices of A(1, 18), D(–7, 4), and C(5, 0). B and E are the midpoints of AC and AD respectively. a) Provide a labelled diagram for the triangle and lines above (2M).

b) Using analytical geometry calculations, determine if the line segments BE and CD are parallel (show all formulas and work)

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

step-by-step explanation:

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- : )