Предмет: Геометрия, автор: Аноним

Help pls
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Автор ответа: zmeura1204

0

Ответ:

1) S=8,3сm

Объяснение:

1)

∆ACD- прямоугольный треугольник.

По теореме Пифагора:

АС=√(АD²+DC²)=√(5,6²+5,6²)=5,6√2 cm.

AO=OC, свойство квадрата.

ОС=АС/2=5,6√2/2=2,8√2 cm

∆KOC- прямоугольный треугольник.

По теореме Пифагора:

КС=√(ОС²+КО²)=√(7,3²+(2,8√2)²)=

=√(53,29+15,68)=√68,97=

=8,30481788≈8,3cm

________________

2)

Если сложить коробку, то высота будет 8cm

__________

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