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PtichkaEL [24]
3 years ago
14

Please help Find: ∠a ∠b ∠c

Mathematics
1 answer:
Lady_Fox [76]3 years ago
7 0

Answer:

A-40

B-140

C-140

Step-by-step explanation:

b and c are supplementary angles to angle 40.

Therefore 180-40= 140.

and opposite angles in a quadrilateral are congruent to each other.

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