Act math problem help?

Hey guys! I'm practicing for the ACT, and I haven't had Geometry for three years, so I can't figure out why the answer to this problem is C. If anyone could explain this to me that would be great :)

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  • John
    Lv 7
    6 years ago
    Favorite Answer

    Angle EAC = 41 degrees; interior opposite angles between parallel line i.e. <BAC and <ACD add up to 180 degrees so <ACD = 180 - 82 = 98 degrees so <ACE = 49 degrees; but those two add up to 90 degrees and the angles of any triangle add up to 180 degrees so <AEC = 90 degrees.

    Source(s): Retired Maths Teacher
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