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Ask QuestionPosted by Samruddhi Br 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
In Fig. 12.25, ABCD is a square of side 14 cm. With centres A, B, C and D, four circles are drawn such that each circle touch externally two of the remaining three circles. Find the area of the shaded region.
Solution:
Side of square = 14 cm
Four quadrants are included in the four sides of the square.
∴ Radius of the circles = 14/2 cm = 7 cm
Area of the square ABCD = 142 = 196 cm2
Area of the quadrant = (πR2)/4 cm2 = (22/7) ×72/4 cm2
= 77/2 cm2
Total area of the quadrant = 4×77/2 cm2 = 154cm2
Area of the shaded region = Area of the square ABCD – Area of the quadrant
= 196 cm2 – 154 cm2
= 42 cm2
Posted by Samruddhi Br 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Solution:
ABC is an equilateral triangle.
∴ ∠ A = ∠ B = ∠ C = 60°
There are three sectors each making 60°.
Area of ΔABC = 17320.5 cm2
⇒ √3/4 ×(side)2 = 17320.5
⇒ (side)2 =17320.5×4/1.73205
⇒ (side)2 = 4×104
⇒ side = 200 cm
Radius of the circles = 200/2 cm = 100 cm
Area of the sector = (60°/360°)×π r2 cm2
= 1/6×3.14×(100)2 cm2
= 15700/3cm2
Area of 3 sectors = 3×15700/3 = 15700 cm2
Thus, area of the shaded region = Area of equilateral triangle ABC – Area of 3 sectors
= 17320.5-15700 cm2 = 1620.5 cm2
Posted by Tabrez Alam 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
गुमास्ता को ब्रिटिश ईस्ट इंडिया कंपनी के एक भारतीय एजेंट के रूप में जाना जाता है। या हम कह सकते हैं कि वे ब्रिटिश सरकार के सेवक हैं। गुमास्ता स्थानीय कॉलोनी के लोग हैं जो ब्रिटिश ईस्ट इंडिया कंपनी को गुप्त जानकारी देते हैं। उस समय में, सभी वस्तुओं की कीमतें गोमास्थों द्वारा तय की गई थीं।
Posted by Alibia Ali Khan 5 years, 3 months ago
- 5 answers
Shiva Gowri 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
ANSWER: Austrian Chancellor Duke Metternich
The Congress was hosted by the Austrian Chancellor Duke Metternich. The delegates drew up the Treaty of Vienna of 1815 with the object of undoing most of the changes that had come about in Europe during the Napoleonic wars.
Posted by Tabrez Alam 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
1854 में, बॉम्बे में पहली कपास मिल स्थापित की गई थी। और यह भारत से इंग्लैंड और चीन के लिए कच्चे कपास के निर्यात के लिए एक महत्वपूर्ण बंदरगाह के रूप में विकसित हुआ। यह कपास की फसल एक बड़ी मांग बन गई और किसानों ने इसमें निवेश करना शुरू कर दिया। कपास ने बाजार को उलटा कर दिया। मिलों में भारी संख्या में मजदूर काम करने लगे।
Posted by Uday Kumar 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Let A(2,3), B(−1,0) and C(2,−4) are the vertices of △ABC
Area of triangle= 1/2 [x1(y2−y3)+x2(y3−y1)+x3(y1−y2)]
Here (x1,y1)=(2,3)
(x2,y2)=(−1,0)
(x3,y3)=(2,−4)
= 1/2 [2(0+4)−1(−4−3)+2(3−0)]
= 1/2 [8+7+6]
= 21/2 sq.unit
Posted by Deepali Ruhela 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Part-A: EMPLOYABILITY SKILLS
S. No. Units Duration in Hours
1. Unit 1: Communication Skills-II 10
2. Unit 2: Self-management Skills-II 10
3. Unit 3: Information and Communication Technology Skills-II 10
4. Unit 4: Entrepreneurial Skills-II 15
5. Unit 5: Green Skills-II most of the changes that had come about in Europe during the Napoleonic wars.
Click on the given link for full syllabus:
<a data-ved="2ahUKEwjD2Z7A3ODtAhW0zjgGHTHLC8oQFjAAegQIARAC" href="http://cbseacademic.nic.in/web_material/Curriculum21/Class_X/402-INFO_TECH_X.pdf" ping="/url?sa=t&source=web&rct=j&url=http://cbseacademic.nic.in/web_material/Curriculum21/Class_X/402-INFO_TECH_X.pdf&ved=2ahUKEwjD2Z7A3ODtAhW0zjgGHTHLC8oQFjAAegQIARAC" rel="noopener" target="_blank">Class X - CBSE | DEPARTMENT OF SKILL EDUCATION ...</a>
Posted by Sara Kate. 5 years, 3 months ago
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Prince Saini 2 years, 1 month ago
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Posted by Rani Kumari 5 years, 3 months ago
- 5 answers
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- 3 answers
Yogita Ingle 5 years, 3 months ago
It led to the transfer of sovereignty from the monarchy to a body of French citizens. The revolution proclaimed that it was the people who would henceforth constitute the nation and shape its destiny.
King?Adithya H. M.. 5 years, 3 months ago
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- 2 answers
Yogita Ingle 5 years, 3 months ago
Centre of curvature:
- The reflecting surface of a spherical mirror forms a part of a sphere. The sphere’s centre is called as centre of curvature.
- It is represented by the letter C.
- The centre of curvature is not a part of the mirror. It lies outside its reflecting surface.
- The centre of curvature of a concave mirror lies in front of it.
- However, it lies behind the mirror in case of a convex mirror.
Payal Dhankhar 5 years, 3 months ago
Posted by Muthu Pradeepa Rajesh 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Given points A(2,−5) and B(−2,9)
Let the points be P(x,0).
So, AP=PB and AP2=PB2
⇒(x−2)2+(0+5)2=(x+2)2+(0−9)2
⇒x2+4−4x+25=x2+4+4x+81
⇒x2+29−4x=x2+85+4x
⇒−4x−4x=85−29
⇒−8x=56
⇒x=−7
Hence, point on the x-axis which is equidistant from (2,−5) and (−2,9) is (−7,0).
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- 1 answers
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- 4 answers
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- 2 answers
Yogita Ingle 5 years, 3 months ago
Let the numbers be x and 3x
Then,
(x+5)/ (3x+5) =21
⇒2x+10=3x+5
⇒x=5
Hence, the numbers are 5 and 15
∴ Sum of numbers = 20
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- 1 answers
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- 1 answers
Meghna Thapar 5 years, 3 months ago
In total, 118 elements have been identified. The first 94 occur naturally on Earth, and the remaining 24 are synthetic elements produced in nuclear reactions. Technetium was the first artificially produced element. It was isolated by Carlo Perrier and Emilio Segrè in 1937. Technetium was created by bombarding molybdenum atoms with deuterons that had been accelerated by a device called a cyclotron.
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- 2 answers
Meghna Thapar 5 years, 3 months ago
Acids that give high concentration of H+ ions on ionisation in aqueous solution are said to be strong acids and acids which give less H+ ions on ionisation in aqueous solution are said to be weak acids. Strong acids dissociate fully in water to produce the maximum number of H + ions. This means if you had one mole of hydrochloric acid (HCl) molecules, they would all 'split' to form one mole of H + ions and one mole of Cl – ions. Weak acids, such as ethanoic acid (CH 3COOH), do not fully dissociate.
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- 3 answers
Misty Chan 5 years, 3 months ago
Utkarsh Chaudhary 5 years, 3 months ago
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- 1 answers
Yogita Ingle 5 years, 3 months ago
Service sector in India employs two different kinds of people. These are:
(i) Highly skilled and educated workers but in less number e.g., advocates, teachers, technicians etc.
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Posted by Srimeenakshi Kr 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Let an equilateral triangle Δ ABC : AB = BC = AC.
vertices are A(3,2) and B(-3,2) and C(x,y).
The mid point of the side AB is M (0,2).
(AB)² = (3+3)² + (2-2)² = 6² + 0² = 36
AB = 6 cm
AB = BC = AC = 6 unit.
AM = 3 unit.
As two vertices are A(-3,2) and B(3,0) so that Third vertex will be at
Y-axis(x=0).
so that
Third vertex C(0,y) and it is located below the origin.
Hence it contains the origin.
Now,
y² = (AC)² - (AM)²
⇒ y² = 6² - 3² = 36 - 9 =27
y = √27 = 3√3 unit
Hence Third vertices of the triangle are A(-3,2) , B(3,2) and C(0,3√3).
Posted by Abhishek Yadav 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Napoleon became the ruler of France on 2nd december 1804. He established a monarchical political system he was worried by the democratic forces unleashed by the revolution. But at the same time he did not want to ignore them entirely so he introduced some reforms in the administrative system. He tried to make the whole system more rational and efficient. To achieve his goal he took some important steps.
These were :
The first was that he introduced Civil Code of 1804 which did away with all privileges based on birth it established equality before the law and secured the right to property .
The second one was that his simplified administrative divisions, abolished the feudal system and freed peasants from serfdom and manorial dues.
The third one was that moreover Guild restrictions were removed, transport and communication system were improved, standardized weights and measures and the common national currency were introduced. By these new policies, peasants, artisans, Walkers and new Businessman were benefited and started to enjoy a new found freedom.
Does it can be concluded that Napoleon had destroyed democracy in France but in administrative field he had incorporated Revolutionary principles.
Posted by G.Lakshman Gandepalli 5 years, 3 months ago
- 0 answers
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Tabrez Alam 5 years, 3 months ago
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