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What is the area (in m^2) of a triangle ...

What is the area (in `m^2`) of a triangle field whose sides measure 25 m, 39 m and 56 m?
एक त्रिभुजाकार मैदान का क्षेत्रफल (वर्ग मीटर में ) ज्ञात करें जिसकी भुजाओं का माप 25 मी, 39 मी और 56 मी है |

A

210

B

240

C

420

D

480

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