What is the area of a triangle with vertices at $(0, 0)$ , $(4, 1)$ , and $(2, 5)$ ?

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A circle in the xy-plane has equation $(x - 3)^{2} + (y + 2)^{2} = 25$ . What are the coordinates of its center and its radius?
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Two similar triangles have corresponding side lengths in the ratio $2 : 5$ . If the smaller triangle has an area of $24 cm^{2}$ , what is…

What is the area of a… | Egyptian Scholastic Test (EST)