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kogti [31]
3 years ago
14

What is the measure of angle B in degrees? A triangle has angles A, C, 51 degrees. Angle A has exterior angle B and angle C has

an exterior angle with measure of 112 degrees. °
Mathematics
1 answer:
adoni [48]3 years ago
6 0

Step-by-step explanation:

The angle adjacent to 112° will form a straight angle along with 112° adding to 180°. That makes C: 68°

a+c+51 = 180

a+68°+51° = 180°

a+119° = 180°

a = 180° - 119°

a = 61°

a+b = 180°

61+b = 180

b = 180-61

b = 119°

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