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In ΔFGH, f = 60 cm, g = 10 cm and h=62 cm. Find the measure of ∠F to the nearest degree.

 Mar 2, 2021
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cos (F) = (h^2 + g^2 - f^2) / 2hg = (3844 + 100 - 3600) / 1240 = 43 / 155

F = cos$^-1$(43 / 155)$^\circ$ ≈ $\boxed{74^\circ}$

 Mar 2, 2021

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