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<c=180°-(<A+<B).........................
sanjana7819:
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(1) d(1,7)
(2) angle A+angle B + angle C = 180, angle sum property
angleC= 180- 124
angleC= 56°
(2) angle A+angle B + angle C = 180, angle sum property
angleC= 180- 124
angleC= 56°
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