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The two triangles are similar
Step-by-step explanation:
It is given that, AB and CD intersect at O.
Then <AOC = <BOD because vertically opposite angles
To find the ratio os sides
Consider two trianglesΔAOC and ΔBOD
OB/OA = 12/ 15 = 4/5
OD/OC = 8/10 = 4/5
The ratio of two sides are equal and the angle including these two sides are equal.
Therefore thee two triangles are similar
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