mathworld
mathworld
15-03-2018
Mathematics
contestada
given the diagram below, what is the answer?
Respuesta :
calculista
calculista
24-03-2018
we know that
if angle A=45°
then
angle C is also 45°
therefore
if BC=6
AB is also 6
applying the Pythagorean theorem
AC²=AB²+BC²--------> AC²=6²+6²------> AC²=72------> AC=6√2
cos 45=6/(6√2)--------> cos 45=1/√2
the answer is the option B
cos 45=1/√2
Answer Link
matthewprichman
matthewprichman
29-09-2020
Answer:
bc=6
Step-by-step explanation:
Answer Link
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