alleryStart learning →G is the centroid of a triangle of area 90 cm². What is the area of triangle GBC?
A18 cm²
B45 cm²
C30 cm²
D60 cm²
Answer & Solution
Correct answer: C. 30 cm²
Joining G to the vertices makes three triangles of equal area, so each is 90/3 = 30 square centimetres.
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