You want to order some shirts that cost 14 dollars each shipping is 7 dollars per order if you buy 11 tshirts what will the orde
2 answers:
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Answer:
Step-by-step explanation:
From the diagram, quadrilateral BCEF is a cyclic quadrilateral.
Opposite angles if a cyclic quadrilateral sum up to 180°
The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent.
Also sum of angles in triangle CBD is 180°.