1.

 Formula for area of a triangle ABC is

A. 2ab sin C = 2bc sin A = 2ac sin B
B. 3/2ab sin C = 3/2bc sin A = 3/2ac sin B
C. 1/2ab sin C + 1/2bc sin A + 1/2ac sin B
D. 1/2ab sin C = 1/2bc sin A = 1/2ac sin B
Answer» E.


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