Question

an exterior angle of a triangle is 140 dedgree and interior is 70 find theagnitude​

Answer 1

explantion:

exterior angle+ interior angle = 180° (straight angle)

140+ interior angle = 180°

interior angle= 40°

using angle sum property

angle A + angle B + angle C = 180°

40° + 70° + angle C = 180°

angle C is 70°

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