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OlyaVik
@OlyaVik
August 2022
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Найдите площадь а) параллелограмма, б) треугольника по двум сторонам и углу между ними:
2) а = 4 м
b = √3
α = 60°
3) а = 1,7 см
b = 2,2 см
α = 45°
4) а = [tex] \frac{4}{3} [/tex] м
b = [tex] \frac{3}{4} [/tex] м
α = 30°
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igir12370
2) а) S=4*√3*Sin60°=4*√3*√3/2=6 м^2;б) S=4*√3*Sin60°/2=6/2=3 м^2;3) a)S=1,7*2,2*Sin45°=3,74*√2/2=1,87√2 см^2;S=1,7*2,2*Sin45°/2=1,87√2/2=0,935√2 см^2;5) а) S=4/3 * 3/4 * Sin30°=0,5 м^2;S=4/3 * 3/4 * Sin30°/2=0,5:2=0,25 м^2;
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OlyaVik
Спасибо большое! Выручили)
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