Предмет: Математика, автор: chikcji

Пожалуйста помогите с задачей!!
Градусные меры углов AOB, BOC, COD и AOD относятся, как 10:14:3:9. сколько процентов от круга составляет сектоp AOD?​

Приложения:

Ответы

Автор ответа: Aminkavitaminka01
1

Ответ:

Для решения данной задачи необходимо знать величину полного угла (360 градусов) и соотношение углов. Пусть x - коэффициент пропорциональности, тогда 10x + 14x + 3x + 9x = 360 36x = 360 x = 10. Найдем, сколько градусов составляет угол AOD: 10x + 3x = 13x = 130. Теперь можем найти, сколько процентов составляет сектор AOD от круга: (130/360)\*100% = 36,11%. Ответ: 36,11%.

Похожие вопросы
Предмет: Английский язык, автор: elenagilbert1864
Срочно 100 б 1 As team leader. Mr Usenov takes pride ..... how effective his staff are at solving problems.
c for
B about
2 Rustam..... have stayed up so late last night;
he's totally exhausted today.
A needn't
c wouldn't
B couldn't
D shouldn't
3 Don't worry about Sezim's objections; she'll
..once she sees what a good idea this
IS.
A across
E round
C out
D through
4 If you like, we ... go over your CV together.
A would
C may
B shall
D could
5 Rinat is a resourceful person who can think outside the ....
A picture
B spotlight
C crowd
D box
6 Guinaz ..... that report; she isn't involved in the project.
A mustn't have written
B can't have written
C shouldn't have written
D might not have written
7 Gauhar is a very ..... girl who is always pleasant to everyone that she meets.
A amiable
C spontaneous
B impulsive
D farsighted
8 *
.. we have the staff meeting today? I'd rather wait till tomorrow when I have the exact sales figures."
A Would
B Shall
C Must
D Could

9 Aibek ..... at everyone in amazement when he got the promotion.
TAT sneered
B pouted
C gaped
D grimaced
10 ... your car to drive to the job interview. please
Dad?
A Might I use
B May I use
C Will I use
D Must I use
11 Unfortunately, the director is quite ..
about the
outcome of the new business venture; it doesn't look very promising.
A pessimistic
B optimistic
C folerant
D
sentimental
12 Please try to get here on time, beginning of the seminar.
A supposing
C unless
B providing
D otherwise
you'll miss the
13 Inkar was grateful for the ..... criticism she received on the analysis section of her report.
A cooperative
C constructive
B comprehensive
D conservative
•14 You .... your laptop with you, you could have borrowed mine.
A mustn't have brought
B needn't have brought
C needn't bring
D needn't to bring
15 Atfirst, it was difficult for the students to fully the importance of non-verbal communication
A grasp
C signal
B craft
D thrive
16 Nurislam... get the job even though he didn't have the right qualifications
A was able to
C ought to
B should
D might