Question

(Please show your work for question 18.)

Answer 1

It is given that AB = CB from this information we conclude that <A=<C by reason :angles opposite equal sides.

<A+<B+<C=180°(Sum of angles in a triangle)

`(4x - 13) + (5x - 2) + (4x - 13) = 180 \\ 4x + 5x + 4x - 13 - 2 - 13 = 180 \\ 13x - 28 = 180 \\ 13x = 180 + 28 \\ 13x = 208 \\ (13x)/(13) = (208)/(13) \\ x = 16`

x=6°

ATTACHED IS THE SOLUTION

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