Home
О нас
Products
Services
Регистрация
Войти
Поиск
larr69
@larr69
August 2022
2
30
Report
Найдите площадь треугольника, две стороны которого равны 11 и 14, а угол между ними равен 120°
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
roman6666
Площадь произвольного треугольника
S = 1/2 *a*b*sin А
cos 120° = cos (90° + 30°) = - sin 30°
-sin 30° = - √3/2
sin 30° = √3/2
S= 1/2 *11 *14 *√3/2 = 154√3/4=77√3/2
1 votes
Thanks 1
lara164
Verified answer
По формуле S= 1/2 ab*sinА
2 votes
Thanks 2
More Questions From This User
See All
larr69
August 2022 | 0 Ответы
grazhdanin obratilsya v sud s iskom k municipalnomu zhilishnomu remontno ekspluatac0ab579267875b4e5ca37338f73836326 65321
Answer
larr69
August 2022 | 0 Ответы
najdite ploshad krugovogo sektora esli radius kruga raven 7 a ugol sektora 1441152c0f0a578a6c71d7ae56061ac5be9 21754
Answer
larr69
August 2022 | 0 Ответы
najdite ploshad ravnostoronnego treugolnika so storonoj 477eec968f3d5b720597243473238b34a 24943
Answer
larr69
July 2022 | 0 Ответы
najdite ploshad trapecii izobrazhyonnoj na risunke3b860fe9b601f587ab0d7f99db73ed0d 19261
Answer
larr69
July 2022 | 0 Ответы
klassifikaciya kaprona pomogite pozhalujsta
Answer
larr69
July 2022 | 0 Ответы
vam vydany 3 probirki s rastvorami opredelite v kakoj iz nih nahoditsya sernaya
Answer
larr69
July 2022 | 0 Ответы
molekulyarnoe polnoe ionnoe i sokrashyonnoe ionnoe uravneniya hsobacl
Answer
larr69
July 2022 | 0 Ответы
pomogite sostavit 10 voprosov na anglijskom o tom kak proshli novogodnie kaniku
Answer
larr69
July 2022 | 0 Ответы
pomogite s himiej tema okislitelnovosstanovitelnye reakcii ochen nuzhno pozh
Answer
larr69
July 2022 | 0 Ответы
sostavit molekulyarnye polnye ionnye i sokrashyonnye ionnye uravneniya hclagno
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 "Найдите площадь треугольника, две стороны которого равны 11 и 14, а угол между н..."
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
S = 1/2 *a*b*sin А
cos 120° = cos (90° + 30°) = - sin 30°
-sin 30° = - √3/2
sin 30° = √3/2
S= 1/2 *11 *14 *√3/2 = 154√3/4=77√3/2
Verified answer
По формуле S= 1/2 ab*sinА