Home
О нас
Products
Services
Регистрация
Войти
Поиск
lliasa
@lliasa
August 2022
1
0
Report
BD=10 cм, CD= 8 см, ∟CAD=∟BAD. Найдите x и y.
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
Dимасuk
Verified answer
Т.к. ∠CAD = ∠BAD, то AD - биссектриса ∠A.
Тогда AC/AB = CD/DB
8/10 = x/y
0,8 = x/y
x = 0,8y
(1)
По теореме Пифагора:
y² - x² = 18²
y² - x² = 324
Подставляем равенство (1):
y² - 0,64y² = 324
0,36y² = 324
y² = 900
y = 30
x = 0,8y = 0,8·30 = 24
Ответ: x = 24, y = 30.
15 votes
Thanks 25
More Questions From This User
See All
lliasa
August 2022 | 0 Ответы
pomogite pozhalujsta reshit i razobrat mediana i vysota pryamougolnogo treugol
Answer
lliasa
July 2022 | 0 Ответы
pozhalujsta pomogite srochno najdite vysotu opushennuyu iz vershiny pryamogo ug
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "BD=10 cм, CD= 8 см, ∟CAD=∟BAD. Найдите x и y..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Т.к. ∠CAD = ∠BAD, то AD - биссектриса ∠A.Тогда AC/AB = CD/DB
8/10 = x/y
0,8 = x/y
x = 0,8y (1)
По теореме Пифагора:
y² - x² = 18²
y² - x² = 324
Подставляем равенство (1):
y² - 0,64y² = 324
0,36y² = 324
y² = 900
y = 30
x = 0,8y = 0,8·30 = 24
Ответ: x = 24, y = 30.