In the adjoining figure ADE and ABC are two similar triangles, point D divides AB in the raito 2:1 and point E divides AC in the ratio 1:2 . If the area of `triangleADE` is 23 square units, then find the ar(`squareDECB)`. jee mains 2020, jee main january, class 12, jee main maths, jee 2020, cbse board, jee main question paper, up board question paper, up boards 2020, up board exam,up board sample paper, cbse class 12, cbse class 10, nageen prakashan, nootan publication
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