For triangle XYZ, m∠X = (7g + 12)° and the exterior angle to ∠X measures (2g + 60)°. Find the measure of ∠X and its exterior angle

Question

For triangle XYZ, m∠X = (7g + 12)° and the exterior angle to ∠X measures (2g + 60)°. Find the measure of ∠X and its exterior angle.

Interior angle = 49°; exterior angle = 131°
Interior angle = 131°; exterior angle = 49°
Interior angle = 96°; exterior angle = 84°
Interior angle = 84°; exterior angle = 96°

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Linh Đan 1 month 2022-12-27T19:33:24+00:00 1 Answer 0 views 0

Answer ( 1 )

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    2022-12-27T19:34:55+00:00
    Step-by-step explanation:
    the sum of the interior and the exterior angle must be 180°.
    7g + 12 + 2g + 60 = 180
    9g + 72 = 180
    9g = 108
    g = 12
    interior angle = 7×12 + 12 = 96°
    exterior angle = 2×12 + 60 = 84°

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