flubri
flubri
21-02-2018
Mathematics
contestada
Please help me ? I think I got it right
Respuesta :
Banabanana
Banabanana
21-02-2018
Сorrect statements:
1.
EF is the longest side
2.
DF = 6 cm
(in a 30-60-90 triangle the side opposite the 30 degree angle is half the length of the hypotenuse. )
3.
By the Pythagorean theorem:
DE =
√(12²-6²) = √(144-36) = √108 = 6√3
DE = 6√3 cm
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