Предмет: Геометрия, автор: Аноним

1)Знайдіть суміжні кути, якщо один з них утричі менший за інший
2. Знайдіть кут, суміжний з кутом: 1) 23; 2) 137*.
Даю 50 балов

Ответы

Автор ответа: Zxcursed69
1

Ответ:

Ответ:1) один угол будет равен трём смежным с ним углам, а т.к. их сумма равна 180°, то можно написать так:

пусть угол x = 3y(3 смежных угла), y + 3y = 180°

4у = 180°

y = 45°

x = 135°

2)1) сумма смежных углов равна 180°, значит смежный ему угол будет равен 180°-23° = 157°

2)(то же самое, что и с углом в 23°) 180° - 137° = 43°

Объяснение:

всё расписано в ответе


Zxcursed69: а чего 2 заезды?) аххахаха
Пеппер: один угол будет равен трём смежным с ним углам - пардон, так не бывает
Автор ответа: Пеппер
1

Объяснение:

Сума суміжних кутів становить 180°.

1) нехай ∠1=х°, тоді ∠2=3х°;  х+3х=180;  4х=180;  х=45;  ∠1=45°,  ∠2=45*3=135°

2) ∠1=23°;  ∠2=180-23=157°;  ∠1=137°;  ∠2=180-137=43°

Похожие вопросы
Предмет: Английский язык, автор: beknazar668

1) How many vowels are there in English:
a) 6
b) 8
c) 5
2) Where voiced consonants are only partially stunned
a) at the beginning of a word
b) at the end of a word
3) Which sound has both a hard and a soft form:
a) [I]
b) [ai]
c) [ou]
4) In English, shock cannot be:
a) nouns
b) linking verbs
c) adjectives
5) Which consonant sounds due to more energetic air supply are pronounced by aspiration:
a) [p]
b)[d]
c) [n]
d) [k]
e)[t]
6) A pair of words that differ in only one speech sound is called:
a) phonological opposition
b) minimum pair
c) minimum set
7) Three connecting sounds:
a) [t,d,h]
b) [r,j,w]
c) [p,t,k]
8) What is another name for diphthongs:
a) vowels
b) consonants
c) double vowels
9) Find a word with a different vowel sound:
cow, start, now, house
a) cow
b) start
c) now
d) house
10) In which of the options is the correct stress:
a) Export
b) export
с) exPort
11) Special signs and symbols denoting the spoken sounds of speech are called ...
a) transcription
b) punctuation
c) specificity
12) Word stress is ...
a) highlighting one or more syllables in a word
b) emphasizing with stronger intonation
c) highlighting the most important word in the text with intonation
13) The combination of letters mn give sound ...
a) /n/
b) /mn/
c) /m/
d) /mk/
14) How does a letter sound /kw/
a) K
b)Q
c) W
d) None of the answers are correct
15) Due to the inability to pronounce long sentences in one breath, they are divided into parts that are called ...a) semantic paragraphs
b) semantic pause
c) semantic segments
d) semantic respite
16) How many sounds do vowels give
a)33
d)24
c)12
d)6
e)56
17) Choose the correct transcription of the word Cloud
a) [claut]
b) [kluat]
c) [klaud]
1
8) Compound, or compound, words are considered to be words that have ....
a) two different roots
b) two or more transfers
c) different sound
d) the same sound
19) Choose explosive sounds
a)[p,i,k]
b) [p,b,k]
c) [g,a,d]
d) [c,t,v]
20) A gradual decrease in the tone of the voice on stressed syllables, called ...
a) falling tone
b) rising tone
21. Choose the words that have the [ɜ:] sound.
A) fur
B) girl
C) car
22.What sound is common to the following words phone, fox, photo?
A) [ǝʋ]
B) [f]
C)[p]
23.Write the word that corresponds to the following transcription [pa:k].
24. Which word has the sound [l].
A) palm
B) talk
C) tall
25. Choose the words that have the [dӡ] sound.
A) orange
B) game
C) jam
26. Which word has an open syllable?
A) jam
B) tent
C) he
27. Which word has a closed syllable?
A) kitten
B) kite
C) tidy
28.Choose the words that have an open syllable.
A) lamp
B) rose
C) pen
D) style
E) take
29. Choose the words that have a closed syllable.
A) hat
B) make
C) dog
D) mum
E) pure
30.Which word has the [h] sound?
A) who
B) wood
C) when
31. How many letters are there in the English alphabet?
A. 27

B. 26

C. 24

D. 25

32. How many vowels are there in "wood"?
A. 2

B. 3

C. 4

D. 0

33. Which group is made up of only of vowels?
A. A,b,c,d
B. A,e,i,o
C. J,k,l,m
D. Q,r,s,t

34. How many vowels are there in an English alphabet?
A. 3

B. 5

C. 6

D. 10

35. Find the odd one out j,k,a,l,m,n.
A. J
B. K
C. A
D. M

36. Which word begins with a vowel?
A. Plum

B. Orange

C. Lemon

D. Papaya

37. The total number of vowels in 'Mississippi'.
A. 4

B. 5
C. 6
D. 11

38. The number of consonants in the word education.
A.5
B. 4

C. 6
D. 9

39. The word 'Thursday' has how many vowels? Can you list out them?
A. 2; u,a

B. 3;, u,a,y

C. 8; t,h,u,r,s,d,a,y

40. Which word begins with a consonant?
A. Ant

B. Umbrella

C. Owl

D. Table
Предмет: Українська мова, автор: teeluft