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  • 1 answers

Gaurav Seth 4 years, 3 months ago

In order to prove that the sum of angles of a triangle is 180, you must know the theorems of angles of a triangle.

We know that,  alternate interior angles are of equal magnitude.

This'll help us get the answer. Let us assume a triangle ABC. Now we have to substitute the angles.

∠PAB + ∠BAC + ∠CAQ = 180°. where PQ line parallel to side BC touching vertex A.

∠PAB = ∠ABC & ∠CAQ = ∠ACB BECAUSE alternate interior angles are congruent..

 

Hence we get, ∠ABC + ∠BAC + ∠ACB = 180°   [Proved]

  • 1 answers

Rishi Kumar 4 years, 3 months ago

9025
  • 2 answers

Gaurav Seth 4 years, 3 months ago

The rationalize form is 

Step-by-step explanation:

Given : Expression 

To find : Rationalize the expression ?

Solution :

Expression 

Multiply the numerator and denominator by 

Therefore, The rationalize form is 

Kartikeya Srivastav 4 years, 3 months ago

√3+√5/2
  • 1 answers

Yogita Ingle 4 years, 3 months ago

-y=8-3x
put x=1
-y=8-3×1
-y=8-3=6
y=-6

put x=0
-y=8-3×0
-y=8-0=8
or
y=-8

  • 5 answers

Kartikeya Srivastav 4 years, 3 months ago

Circle is the right answer I asked the question

Siddhi Lavhe 4 years, 3 months ago

Hexagon cause it has 6 sides?

Nirajkumar Prasad 4 years, 3 months ago

Circle is the answer

Ankit Shukla 4 years, 3 months ago

Hexagon and it has 6 sides

Gaurav Seth 4 years, 3 months ago

aNS : Hexagon

Regular Hexagon Properties

  • It has 6 equal sides and 6 equal angles.
  • It has 6 vertices.
  • Sum of interior angles equals 720°.
  • Interior angle is 120° and exterior angle is 60°.
  • It is made up of six equilateral triangles.
  • 9 diagonals can be drawn inside a regular hexagon.
  • All the sides opposite to each other are parallel.
  • 1 answers

Finix Omen 4 years, 3 months ago

I will send one video Or else go to youtube and search 'number system BHAI KI PADHAI ' YOU WILL LEARN WELL
  • 1 answers

Meghna Thapar 4 years, 3 months ago

In mathematics, a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. An example of a polynomial of a single indeterminate, x, is x2 − 4x + 7. A polynomial expression is the one which has more than two algebraic terms. As the name suggests, Polynomial is a repetitive addition of a monomial or a binomial. (a + b + c + …)

  • 1 answers

#Ķáŕáń J@@Ť? 4 years, 3 months ago

Book me hai
  • 3 answers

Khushi. Singh. 4 years, 3 months ago

Thankyou so much

Nirajkumar Prasad 4 years, 3 months ago

(a+b)^3-(a+b). =(a+b){(a+b)^2-1}. =(a+b)(a+b+1)(a+b-1)

Apoorva Parihar 4 years, 3 months ago

Sol : ( a + b )³ - a - b  = ( a + b )³ - ( a + b ) By taking ( a + b ) as common,  = ( a + b ) { ( a + b )² - 1 }  = ( a + b ) ( a² + b² + 2 ab - 1 )  [ ( a + b )² = a² + b² + 2 ab ]
  • 1 answers

Gaurav Seth 4 years, 3 months ago

Since, the point (x = 3, y = 4) lies on the equation 3y = ax + 7, then the equation will be , satisfied by the point.
Now, put x = 3 and y = 4 in given equation, we get
3(4) = a (3)+7
⇒ 12 = 3a+7
⇒ 3a = 12 – 7
⇒ 3a = 5
Hence , the value of a is 5/3 .

  • 3 answers

Gaurav Seth 4 years, 3 months ago

Since, the point (x = 3, y = 4) lies on the equation 3y = ax + 7, then the equation will be , satisfied by the point.
Now, put x = 3 and y = 4 in given equation, we get
3(4) = a (3)+7
⇒ 12 = 3a+7
⇒ 3a = 12 – 7
⇒ 3a = 5
Hence, the value of a is 5/3.

Apoorva Parihar 4 years, 3 months ago

Sorry

Apoorva Parihar 4 years, 3 months ago

This question is wrong
  • 1 answers

Yogita Ingle 4 years, 3 months ago

{(-1/3)3-2/3
=(-1/3) -2
= (3-1 ) -2
= 32 = 9

  • 2 answers

#Ķáŕáń J@@Ť? 4 years, 3 months ago

Kam ker nai k lyia

Gaurav Seth 4 years, 3 months ago

Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space.

A graph can be a very effective tool in presenting visual information rather swiftly. Even students can use a graph as it is something simple to draw. Dot, lines and a little bit of knowledge can go a long way.

  • 3 answers

Rajat Singh 4 years, 3 months ago

These are 8 identities which are basic in class 9th.

Rajat Singh 4 years, 3 months ago

4.( a+b )^3 = a^3 +b^3+ 3ab( a+b ) 5.( a-b )^3 = a^3 -b^3 - 3ab(a-b) 6.( a+b+c )^2 = ( a^2+b^2+c^2 )+ 2( ab+ bc+ ca ) 7.( a^3+b^3 )= ( a+b )(a^2+ab+b^2) 8.( a^3-b^3 )= ( a-b)( a^2 +ab+b^2)

Rajat Singh 4 years, 3 months ago

1.( a+b )^2 = a^2+b^2+2ab 2.( a-b )^2 = a^2 + b^2 - 2ab 3.( a^2-b^2 ) = ( a+b )( a-b )
  • 1 answers

Nirajkumar Prasad 4 years, 3 months ago

x^2-3√5+1√5x-15. =x(x-3√5)+√5(x-3√5). =(x+√5)(x-3√5)
  • 0 answers
  • 4 answers

Rajat Singh 4 years, 3 months ago

=

Surinder Singh 4 years, 3 months ago

1 ans

Akshita Nagpal 4 years, 3 months ago

1

Suhani Katare 4 years, 3 months ago

1
  • 1 answers

Yogita Ingle 4 years, 3 months ago

2 x 4⅓ x 6 x 2⅓

=  2  x 13/3  x 6  x 7/3

= 12  x 13/3  x 7/3

= 1092/9

  • 5 answers

Ayush Tiwari 4 years, 3 months ago

30

Rajat Singh 4 years, 3 months ago

29+1=30

Akshita Nagpal 4 years, 3 months ago

30

Shyambhavi Singh 4 years, 3 months ago

29+1=30

Aman Maurya 4 years, 3 months ago

30
  • 1 answers

Surinder Singh 4 years, 3 months ago

8√2/4√3 = 4.898979486
  • 5 answers

Garima Singh Parihar 4 years, 3 months ago

90

Akshita Nagpal 4 years, 3 months ago

90

Sankalp Rao 4 years, 3 months ago

Each 90° i.e all angles are of 360°

Yogita Ingle 4 years, 3 months ago

The Interior Angles of a Quadrilateral add up to 360°

Square has all angles same

SO, the measure of all angles of square is  360°

Sankalp Rao 4 years, 3 months ago

90°
  • 1 answers

Gaurav Seth 4 years, 3 months ago

Semi perimeter of the field (s) =(50+65+65)/2
= 180/2
=  90 cm
By heron's formula,
Area of the triangle = √s(s-a)(s-b)(s-c)
= √90(90-50)(90-65)(90-65)
= √90(40)(25)(25)
= √3600×25×25
= 60×5×5
= 300×5
= 1500m^2
Cost of laying grass = 1500×7
= ₹10500

  • 1 answers

Sia ? 3 years, 5 months ago

1.41 or 1.40714285714

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