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Автор - Julia0922

Чему равен х?
Люди добрые, пожалуйста, помогите!

Ответ

Проверено экспертом

Автор - sabirzelenaovz2iy

Ответ:

Объяснение:

АД=10; СД=9.

АС=√( 10²-9²)=√(100-81)=√19.

СВ=9+9=18.

х= √(19+18²)=√343≈18,5.

Второй рисунок.

АС=√ (8²-6²)=√28.

х=√(28-21)=√7.

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