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= J C B AB and BC are sides of congruent nine-sided regular polygons. Angle DAB= angle DCB = 90°. Calculate the size of angle ADC. Not to scale
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=

J
C
B
AB and BC are sides of congruent nine-sided regular polygons.
Angle DAB= angle DCB = 90°.
Calculate the size of angle ADC.
Not to scale

= J C B AB and BC are sides of congruent nine-sided regular polygons. Angle DAB= angle-example-1
User Sossisos
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6.6k points

1 Answer

7 votes

Answer:Triangle ABC and BCD are congruent by the side side side triangle congruence theorem

Explanation:

User Warjeh
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