Срочно!Решите 8.Даю 99 балов!. Created by ElonMusk15. geometriya-ru

Срочно!Решите 8.Даю 99 балов!...

ElonMusk15 @ElonMusk15

September 2021 1 44 Report

Срочно!Решите 8.Даю 99 балов!

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Banabanana

Verified answer

АN - биссектриса ΔАВD.
Пусть ВN = x, тогда ND = 2x
По свойству биссектрисы треугольника:
$\frac{AD}{ND}= \frac{AB}{BN} \\ \\ \frac{16}{2x}= \frac{AB}{x} \\ \\ AB= \frac{16\cdot x}{2x}=8$

$P_{ABCD}=2(AB+AD)=2(8+16)=48$ cм

Ответ: 48 см.

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ElonMusk15 Спасибо,выручил.

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