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Posted by Christina Shaju 5 years, 1 month ago (9628889)
- 2 answers
Gaurav Seth 5 years, 1 month ago (2898529)
Quadrilateral Definition
A quadrilateral is a plane figure that has four sides or edges, and also have four corners or vertices. Quadrilaterals will typically be of standard shapes with four sides like rectangle, square, trapezoid
Posted by Aniket Rawat 5 years, 1 month ago (6293240)
- 0 answers
Posted by Christina Shaju 5 years, 1 month ago (9628889)
- 3 answers
Prachi Saxena 5 years, 1 month ago (9994304)
Gaurav Seth 5 years, 1 month ago (2898529)
A square is a quadrilateral because it has four sides.
It is a regular quadrilateral because all four sides and angles are equal.
Explanation:
A quadrilateral is any figure with four sides.
Let's take for example a rectangle (because we have to prove it with squares), it has four sides, so it's a quadrilateral.
And as well as a square has four sides, kites, parallelograms, rhombuses, etc. are also quadrilaterals
Posted by Akash Hazarika 5 years, 1 month ago (9132633)
- 2 answers
S Balamani Kanta Reddy 8A 5 years, 1 month ago (9704315)
Posted by Pushpendra Rathore 5 years, 1 month ago (9962180)
- 1 answers
Posted by Kanishka Vats 5 years, 1 month ago (10014583)
- 5 answers
Naaz Kumar 5 years, 1 month ago (10017592)
Gaurav Seth 5 years, 1 month ago (2898529)
. Vegetables are obtained from the plants. ...
Roots. Radish, turnip, carrot, beetroot are some of the roots that are eaten as vegetables.
Stem. Potato and ginger are the stems that are eaten as vegetables.
Leaves. Spinach, cabbage, lettuce are the leaves eaten as vegetables.
Flowers. ...
Fruits. ...
Cereals. ...
Tea, Coffee.
Posted by Baliyan ? 5 years, 1 month ago (9948348)
- 4 answers
Swadha Mishra 5 years, 1 month ago (6905592)
Swadha Mishra 5 years, 1 month ago (6905592)
Gaurav Seth 5 years, 1 month ago (2898529)
Aldehydes having αhydrogen undergo self condersation on warming with dilute or mild base to give p-hydroxy aldahydes called aldols. This reaction is called aldol condersation
Posted by Baliyan ? 5 years, 1 month ago (9948348)
- 3 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Sodium potassium tartrate is a double salt of tartaric acid with a chemical formula C4H4O6KNa·4H2O. It is also known as Rochelle salt or Potassium sodium tartrate.
It is a colourless to white crystalline powder with a cool and saline taste. It has a pH value of 6.5 – 8.5. It has a large piezometric effect which makes it widely useful in sensitive vibrational and acoustic devices.
Posted by Utkarsh Yadav 5 years, 1 month ago (9461200)
- 1 answers
Meghna Thapar 5 years, 1 month ago (6237)
Sea stars are important members of the marine environment and are considered a keystone species. A keystone species preys on animals that have no other natural predators and if they are removed from the environment, their prey will increase in number and may drive out other species. As an echinoderm, a starfish has amazing powers of regeneration. One of his best defenses against predators is his ability to drop off an arm that's grasped in a predator's mouth. Assuming the predator doesn't bite off the arm, the starfish can intentionally separate it from his body to aid his escape.
Posted by Baliyan ? 5 years, 1 month ago (9948348)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Fehling’s solution is a deep blue alkaline solution which is used to identify the presence of aldehydes or groups that contain any aldehyde functional group -CHO and in addition with Tollen’s reagent to differentiate between reducing and non-reducing sugars. Fehling’s solution is also used to differentiate a ketone group and water-soluble carbohydrates.
Posted by Bavatharani C 5 years, 1 month ago (9681274)
- 5 answers
Posted by Aakriti??? Kumar 5 years, 1 month ago (9494882)
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Disha Dadhich 5 years, 1 month ago (8696100)
Ayushman Singh 5 years, 1 month ago (937854)
Posted by Mudit Sharma 5 years, 1 month ago (6310019)
- 4 answers
Your Name 5 years, 1 month ago (10051583)
Posted by Srinithya V V 5 years, 1 month ago (9953717)
- 1 answers
Posted by Prachi Agrawal 4 years, 11 months ago (9686160)
- 1 answers
Gaurav Seth 5 years ago (2898529)
गांधी जी ने प्रस्ताव रखा कि आंदोलन को चरणों में प्रकट करना चाहिए:
- पहला चरण: सरकार द्वारा प्रदान किए जाने वाले खिताबों का आत्मसमर्पण।
- दूसरा चरण: सिविल सेवाओं, सेना, पुलिस, अदालतों और विधान परिषदों, स्कूलों और विदेशी वस्तुओं का बहिष्कार।
- तीसरा चरण: तब, जब सरकार दमन का इस्तेमाल करती है, तो एक पूर्ण सविनय अवज्ञा अभियान शुरू किया जाएगा।
Posted by P Lavanya 5 years, 1 month ago (9983864)
- 0 answers
Posted by Nidhi Sharma 5 years, 1 month ago (4972646)
- 1 answers
Gaurav Seth 5 years, 1 month ago (2898529)
Let u & v be the velocity of the two trains named A & B.
While overtaking the relative velocity of train A with respect to B = u - v.
While crossing, the relative velocity of train A with respect to B = u + v.
Total distance to be travelled by Train A while crossing = 100 + 100 = 200.
So,
20 = 200 ÷ u-v
=> u - v = 10....1)
Also,
10 = 200 ÷ u + v
=> u + v = 20.......2)
On solving the equation 1 & 2, we get;
u = 15 M/S of the train A / First Train.
v= 5 M/S of the train B / Second Train.
Posted by Kavitha Senthil 5 years, 1 month ago (9706755)
- 1 answers
Gaurav Seth 5 years, 1 month ago (2898529)
(i) The working of optical fiber is based on total internal reflection. Statement: When a light ray goes from denser to rarer medium at an angle greater than critical angle, the ray is totally reflected in first (denser) medium. This phenomenon is called total internal reflection.
(ii) Conditions: (a) Ray of light must go from denser medium to rarer medium. (b) Angle of incdience must be greater than critical angle (i.e.,i > C).v
Posted by Deepjyoti Boy 5 years, 1 month ago (8150027)
- 2 answers
Gaurav Seth 5 years, 1 month ago (2898529)
Q u e s t i o n
Did you like the frog’s behaviour?
A n s w e r
No, I did not like the frog’s behaviour because he is very rude to his mother.
Posted by Deepjyoti Boy 5 years, 1 month ago (8150027)
- 0 answers
Posted by S H I V A N S H U 5 years, 1 month ago (10014165)
- 0 answers
Posted by Deepjyoti Boy 5 years, 1 month ago (8150027)
- 2 answers
Gaurav Seth 5 years, 1 month ago (2898529)
Page No 80:
Question 2:
Besides lazy, what other word can you think of to describe the frog? (Hint: how he behaved with his mother…,when a lady frog walked by…)
Answer
The frog besides being lazy is also rude and proud.
Posted by Shailja Misha 5 years, 1 month ago (10014357)
- 0 answers
Posted by Tanya Tiwari 5 years, 1 month ago (8993754)
- 4 answers
Posted by Sachi Chauhan 5 years, 1 month ago (9956776)
- 1 answers
Posted by Lehar Sunariya 5 years, 1 month ago (9658391)
- 3 answers
Posted by Yuvraj Deol 5 years, 1 month ago (10014244)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Pranayama: Pranayam means extension of the breath of extension of the life force. ‘Prana’ means life force and ‘Ayama’ means control. There are three parts of Pranayama:
1. Purka – Means inhalation
2. Rechaka – Means exhalation
3. Kumbhaka – Means retaining the breath
Posted by Sujata Thipse 5 years, 1 month ago (8769650)
- 2 answers
Sunaada Acharya 5 years, 1 month ago (9487899)
Gaurav Seth 5 years, 1 month ago (2898529)
Let their salaries/income be 9x and 7x
let their expenditure be 4y and 3y
so,
ATQ
9x-4y=200—(1)
7x-3y=200—(2)
so,
from (1)
x=(200+4y)/9—(3)
put x in (2)
7[(200+4y)/9]-3y=200
(1400+28y)/9-3y=200
(1400+28y-27y)/9=200
y+1400=1800
y=400
now put y in (3)
x=(200+4×400)/9
x=(200+1600)/9
x=1800/9
x=200
so,
salary of first person=9×200=1800 rs
salary of second person=7×200=1400 rs
Posted by Sagar Malan 5 years, 1 month ago (10014210)
- 1 answers

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Anshul Yadav 4 years, 9 months ago (10772787)
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