In Δ ABC, AB = 2 \(\sqrt{5}\) cm, AC = 10 cm, BC = 4 \(\sqrt{5}\) cm then ∠B is

In Δ ABC, AB = 2 \(\sqrt{5}\) cm, AC = 10 cm, BC = 4 \(\sqrt{5}\)

1.	In Δ ABC, AB = 2 \(\sqrt{5}\) cm, AC = 10 cm, BC = 4 \(\sqrt{5}\) cm then ∠B is
A.	120°
B.	60°
C.	90°
D.	45°
Answer» D. 45°

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In Δ ABC, AB = 2 \(\sqrt{5}\) cm, AC = 10 cm, BC = 4 \(\sqrt{5}\) cm then ∠B is

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