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In ΔDEF, m∠D = 35° and m∠F = 88°. What is m∠E?
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In ΔDEF, m∠D = 35° and m∠F = 88°. What is m∠E?

In ΔDEF, m∠D = 35° and m∠F = 88°. What is m∠E?-example-1
User Islingre
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1 Answer

4 votes

Answer:

C

Explanation:

the sum of the 3 angles in a triangle = 180° , that is

∠ D + ∠ E + ∠ F = 180° ( substitute values for D and F )

35° + ∠ E + 88° = 180°

∠ E + 123° = 180° ( subtract 123° from both sides )

∠ E = 57°

User Kym NT
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