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IceJOKER [234]
3 years ago
14

If ΔABC ∠ΔDEC, what is m∠D? A) 40° B) 150° C) 60° D) 80°

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
Angle D is 40 because Angle A and D are the corresponding angles since the triangles are congruent.

Hope this helps :)
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3 years ago
4 Three intersecting lines form triangle BCE as shown below.
Lapatulllka [165]

Answer:

  • A, C, E

Step-by-step explanation:

<u>Options:</u>

A. m∠C + m∠E = m∠A

  • Correct. Exterior angle equals to sum of non-adjacent interior angles.

B.   m∠D + m∠F = m∠B

  • Incorrect. Exterior angles have greater value.

C. m∠B + m∠C + m∠E = 180°

  • Correct. Interior angles of a triangle sum to 180°

D. m∠B + m∠C + m∠D = 180°

  • Incorrect. Angles C and D sum to 180°

E. m∠A + m∠ B = m∠E + m∠F

  • Correct. Both sides of equation refer to straight angle.

F . m∠B + m∠C + m∠ E = m∠A + m∠D + m∠F

  • Incorrect. Some of interior angles is not equal to sum of exterior angles.
5 0
2 years ago
Read 2 more answers
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Answer:

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------------------------

Step-by-step explanation:

6 0
2 years ago
8 is 16% of what?<br> Complete the sentence
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Answer:

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Step-by-step explanation:

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3 0
2 years ago
Okay so clearly I'm not so smart but I need help again..?
Alla [95]
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5 0
3 years ago
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