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20 POINTS!! Find the m∠ABC, if m∠DCE = 50° and ∠DEC is a right angle. 40° 50° 90° 180°
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20 POINTS!!

Find the m∠ABC, if m∠DCE = 50° and ∠DEC is a right angle.

40°
50°
90°
180°

20 POINTS!! Find the m∠ABC, if m∠DCE = 50° and ∠DEC is a right angle. 40° 50° 90° 180°-example-1
User Ilia Yatchev
by
5.1k points

2 Answers

6 votes

Answer:

40

Explanation:

User Monkeyboy
by
5.1k points
3 votes

Answer: The answer is 40 degrees


Step-by-step explanation: Angles CDE and ABC are congruent and the sum of the other angles together is 140 degrees. Since all triangles add up to 180 degrees 40 degrees is left.


User Samuel Phan
by
6.0k points
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