Answer:
area A = 5.25 cm²
area B = 5.25 cm²
area C = 5.25 cm²
Explanation:
area of a triangle = 1/2 x base x height
area of A = 1/2 x 4.2 x 2.5 = 5.25 cm²
area of B = 1/2 x 4.2 x 2.5 = 5.25 cm²
area of C = 1/2 x 4.2 x 2.5 = 5.25 cm²
Triangles A, B and C have the same area as they all have the same measures of base and height.