Anonymous
Anonymous asked in Science & MathematicsMathematics · 5 years ago

Solve math help?

Update:

How do I setup an equation?

Update 2:

How'd you get 20?

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3 Answers

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  • Anonymous
    5 years ago
    Favorite Answer

    Line CD makes a straight angle (180°)

    Therefore 3x+40+2x=180°

    5x+40=180

    5x=140

    x=28°

    Now m ang AEC = 3x+40

    so putting the value of x ...3(28)+40=124°

  • Thomas
    Lv 7
    5 years ago

    3x+40+2x=180

    5x+40=180

    5x=140

    x=28 making AEC or 3x+40 become:

    3(28)+40=124 (and AED=2x become 56)

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  • alex
    Lv 7
    5 years ago

    124 degrees

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