If $|\vec{a}|=2,|\vec{b}|=5$ and $|\vec{a} \times \vec{b}|=8$, then $|\vec{a} \cdot \vec{b}|$ is equal to: [JEE Main 2021, 25 Jul (Shift 2)]

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If \(|\vec{a}|=2,|\vec{b}|=5\) and \(|\vec{a} \times \vec{b}|=8\), then \(|\vec{a} \cdot \vec{b}|\) is equal to: [JEE Ma…