Question

Please helppppppppppppp

Answer 1

BE = 7.73

Explanation:

All the angles in ΔABC are 60 because it's an equilateral triangle

AB = AE = 4

m∠BAE = 60 + 90 = 150

(1/2)m∠BAE = 150/2 = 75

sin75 = (1/2)(BE) / 4

1/2(BE) = sin75(4)

BE = sin75(4)(2) = 7.73