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MATH / The triangles whose vertices are (A)→, (B)→, and (C)→ has area 12. Find the area of the triangle whose vertices are −(A)→+(B)→+(C)→, (A)→−(B)→+(C)→, and (A)→+(B)→−(C)→. · Discussion

Discussing The triangles whose vertices are (A)→, (B)→, and (C)→ has area 12. Find the area of the triangle whose vertices are −(A)→+(B)→+(C)→, (A)→−(B)→+(C)→, and (A)→+(B)→−(C)→. · MATH

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