C-10-Q146: From $\cos 60^\circ = \dfrac{7}{\ell}$, the broken piece $\ell$ equals…

C-10-Q146: From $\cos 60^\circ = \dfrac{7}{\ell}$, the broken piece $\ell$ equals… | প্রশ্ন করি

From cos⁡60∘=7ℓ\cos 60^\circ = \dfrac{7}{\ell}cos60∘=ℓ7​, the broken piece ℓ\ellℓ equals—