Day: March 21, 2025

երկրաչափություն

Posted on by jamharyanlevon

1)Եռանկյան կողմերից մեկը 12 սմ է, դրան տարված բարձրությունը՝ 7 սմ: Գտեք եռանկյան մակերեսը:

s=12*7 /2=42սմ

42

2)Եռանկյան մակերեսը 108 մմ է, կողմերից մեկը՝ 27 մմ: Գտե՛ք այդ կողմին տարված բարձրությունը:

108*2 /27=8

8

3)Ուղղանկյուն եռանկյան էջերը 7 մ և 16 մ են: Գտե՛ք եռանկյան մակերեսը:

s=7*16 /2=56

56

4)ABC եռանկյունում <B = 90օ , AB = 8 դմ, BC = 15 դմ: Գտեք եռանկյան մակերեսը:

s=8*15 /2=60

60

5)Ուղղանկյուն եռանկյան էջերից մեկը երկու անգամ մեծ է մյուսից, մակերեսը 162 սմ է: Գտե՛ք այդ եռանկյան էջերը:

162*2=324

3x=324

x=108

2x=216

108

216

6)Եռանկյան կողմերից մեկը 9 մ է, մյուսը՝ 6 մ: Առաջին կողմին տարված բարձրությունը 4 մ է: Գտեք երկրորդ կողմին տարված բարձրությունը:

s=9*2 /2=18 h=18/6=3

3

7)ABC եռանկյան մեջ <A = 30օ , AB = 14սմ , AC = 6 սմ: Գտեք եռանկյան մակերեսը:

6/2=3

s=3*14/2=21

21

8)Ուղղանկյուն եռանկյան էջերը 6 սմ և 8 սմ են, իսկ ներքնաձիգը՝ 10 սմ: Գտեք ներքնաձիգին տարված բարձրությունը:

s=6*8 /2=24 24*2 /10=4,8

4,8

հանրահաշիվ

Posted on by jamharyanlevon

1)Հաշվե՛ք․

a)4 b)3,1 g)1 D)5 e)1,13 z)7,2 e)0,3 y)57,1

2)Արտադրիչը հանեք արմատանշանի տակից։

a)2√3 b)3√2 g)2√5 d)2√6 e) 3√3 z)2√7 e)2√8 y)3√5 t)5√2 6√2 1

3)Հաշվե՛ք․

a)20 b)18 g)30 d)48 e)220 z) 105 e)210 y)630 t)153

4)Արտադրիչը հանեք արմատանշանի տակից։

a)√a2 b)x√x g)m2√m d)m2√m3 e)ab z)2mn e)x2y y)3pq2 t) 5a2b√a2 j)4y√xy e)7qa2√pa y)11m2nk√n

5)Հաշվե՛ք․

a)1/2 b)1/3 g)1 1/5 d)2 1/3

6)Հաշվե՛ք․

a)3 b)12 g)20 d)35 e)90 z)420

7)Արտադրիչը հանեք արմատանշանի տակից։

а)3√12 b)7√3 g)9√2 d)7√5 e)5√11 z)11√3 e)3√44 y) 24 t)2√169 j)18√3 i)2√13689 l)2√207,936

English. Famous Women in History

Posted on by jamharyanlevon

Marie Curie was an outstanding physicist and chemist, the first woman to receive the Nobel Prize, and the only person to be awarded it in two different sciences. Maria was born on November 7, 1867, in Warsaw (then part of the Russian Empire). She showed an interest in science from childhood, but in Poland women could not go to university. So she moved to France and entered the Sorbonne in Paris, where she studied physics and mathematics. In 1895, she married Pierre Curie, with whom she conducted scientific research. In 1898, Marie and Pierre Curie discovered two new chemical elements, Polonium and Radium. Maria coined the term “radioactivity” and studied how radioactive substances release energy. Her work formed the basis of nuclear physics. Nobel Prize in Physics (1903) (shared with Pierre Curie and Henri Becquerel) for their studies of radioactivity. Nobel Prize in Chemistry (1911) for the discovery and study of radium and polonium. During World War I, Curie organized mobile X-ray stations to treat the wounded. Marie Curie died in 1934 from illnesses caused by long-term exposure to radiation. Her research led to the development of radiology, nuclear medicine and atomic energy. She inspired thousands of scientists and remains a symbol of science and perseverance.

test

Posted on by jamharyanlevon
1) Somebody found the key.
The key was found 
2) Somebody made mistakes.
[ Mistakes were made ]		CheckShow
3) Somebody loved that woman.
[ That woman was loved ]		CheckShow
4) Somebody cleaned the rooms.
[ The rooms were cleaned ]		CheckShow
5) Somebody fixed the computer.
[ The computer was fixed ]		CheckShow
6) Somebody built that house.
[ That house was built ]		CheckShow
7) Somebody wrote War and Peace.
[ War and Peace was written ]		CheckShow
8) Somebody painted The Mona Lisa.
[ The Mona Lisa was painted ]		CheckShow
9) Somebody stole my wallet.
[ My wallet was stolen ]		CheckShow
10) Somebody prepared lunch.
[ lunch was prepared ]		CheckShow
11) Somebody drunk a lot of coffee.
[A lot of coffee was drank ]		CheckShow
12) Somebody forgotten the papers.
[ The papers were forgot ]		CheckShow
13) Somebody closed the windows.
[ The windows were closed ]		CheckShow
14) Somebody invited Julie and Luke to a party.
[ Julie and Luke were invited to a party ]		CheckShow
15) Somebody built a website.
[ website was built ]		CheckShow
16) Somebody ate all the cakes.
[ All the cakes were eaten ]		CheckShow
17) Somebody told me to wait.
[ I was told to wait ]		CheckShow
18) Somebody employed a lot of new waiters.
[ A lot of new waiters were employed ]		CheckShow
19) Somebody opened a shop.
[ A shop was opened ]		CheckShow
20) Somebody lost the letter.
[ The letter was lost ]		CheckShow
  1. Mr Jones watches films.
    The films watches by Mr. Jones
  2. The people speak English.
    The English spoken by these people
  3. He reads comics.
    A comics reads by him
  4. We play volleyball
    Volleyball is played by us
  5. They sing the song.
    The song is sung
  6. I take photos.
    Photos are taken.
  7. She does the housework.
    The housework is done.
  8. The policemen help the children.
    The children are helped.
  9. He writes poems.
    Poems are written.
  10. Mother waters the flowers.
    The flowers are watered.