pureromancebycrystal pureromancebycrystal

09-11-2020
Mathematics

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triangles-- find the M<ECD if ABC angels are 31 degress.
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triangles find the MltECD if ABC angels are 31 degresspicture added class=

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xenia168 xenia168

09-11-2020

Answer:

Step-by-step explanation:

180° - 2 × 31° = 118° is measure of an angle which is vertical to ∠ECD ⇒

m∠ECD = 118°

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