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diman777826
@diman777826
August 2022
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В треугольнике АВС угол А=45, АВ=12, АС=6,5. Найдите его площадь.
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Малинка2012
Verified answer
AB-a
AC-b
угол A - уголα
S=1/2 ab sinα
S=1/2*12*6,5*1/√2 = 78:2√2=39:√2 ≈ 39: 1,41 ≈ 27,66
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Answers & Comments
Verified answer
AB-aAC-b
угол A - уголα
S=1/2 ab sinα
S=1/2*12*6,5*1/√2 = 78:2√2=39:√2 ≈ 39: 1,41 ≈ 27,66