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OpenStudy (anonymous):
TRIANGLE HELP TRIANGLE HELP
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OpenStudy (anonymous):
hartnn (hartnn):
angle CBA is supplementary to angle 145 can you find angle CBA from this ? (supplementary angles add up to 180 degrees)
OpenStudy (anonymous):
180-145 right ?
hartnn (hartnn):
correct!
hartnn (hartnn):
now sum of angles of a triangle add up to 180 also! so, CBA+CAB+ACB = 180 so, can you find angle A from here ?? (angle CAB)
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