1. <1 = 80°
2. <B = 61°
3. <V = 38°
180° - 50° - 30°=100° 180° - 100° = 80°
so <1 = 80°
180° - 86° = 94 180° - 94° - 25° =61°
so <B = 61°
180° - 90° - 52° = 38° { sum of two nonadjacent interior angles} so <V = 38°
{the sum of triangle angle is 180°}
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Answers & Comments
1. <1 = 80°
2. <B = 61°
3. <V = 38°
solution
180° - 50° - 30°=100° 180° - 100° = 80°
so <1 = 80°
180° - 86° = 94 180° - 94° - 25° =61°
so <B = 61°
180° - 90° - 52° = 38° { sum of two nonadjacent interior angles} so <V = 38°
{the sum of triangle angle is 180°}