A little help here thank you!!!
2 answers:
Answer:
∠B = 82°
Step-by-step explanation:
(see attached for reference)
recall the property that an exterior angle of a triangle is equal to the sum of its two remote interior angles.
in our case, the exterior angle is obtuse ∠A = 143°
the two remote interior angles are ∠C and ∠B
hence according to our definition above:
143° = ∠C + ∠B (we are given that ∠C =61°)
hence
143° = 61° + ∠B
143° - 61° = ∠B
∠B = 82°
Answer:
B=82
Step-by-step explanation:
To find the other remote interior angle (B), you just need to subtract the other remote interior angle (C, 61) from 143 (A, 143) You would get 82.
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