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  • 1 answers

Gaurav Seth 3 years, 11 months ago

Answer:

the radius of the garden is 30

Step-by-step explanation:

if each girl is sitting and holding the string of phone

so, the difference between the girls will be 60.

the diameter will be 60.

and the radius will be 60 / 2 =30

  • 1 answers

Gaurav Seth 3 years, 11 months ago

Step-by-step explanation:

1. Given data

  Radius if circle (R)=

  Length of one chord (=16 cm

  Length of second chord (=12 cm

2. Let perpendicular distance of chord of length 16 cm from centre of circle is 

   Then

   ...1)

   On putting the respective value in equation 1)

      ...2)

3. Let perpendicular distance of chord of length 12 cm from centre of circle is 

    Then

   ...3)

   On putting the respective value in equation 3)

        ...4)

5. If both is on same side with respect to centre of circle, distance between two chord

   

6. If both is on opposite side with respect to centre of circle, distance between two chord    

   

  • 1 answers

My Guide ... 4 years ago

Let ∆ABC is a right triangle such that ∠B = 90 and D is mid point of AC . then we have to prove that BD = 1/2 AC we produce BD to E such that BD = AC and EC.   Now is ∆ADB and ∆CDE we have  AD = DC [Given]  BD = DE [By construction]  And, ∠ADB = ∠CDE [Vertically opposite angles]  ∴ By SAS criterion of congruence we have  ∆ADB ≅ ∆CDE  ⇒ EC = AB and ∠CED = ∠ABD ....(i) [By cpctc]  But ∠CED & ∠ABD are alternate interior angles  ∴ CE ║ AB ⇒ ∠ABC + ∠ECB = 1800 [Consecutive interior angles] ⇒ 90 + ∠ECB = 1800  ⇒ ∠ECB = 900  Now, In ∆ABC & ∆ECB we have  AB = EC [By (i)]  BC = BC [Common]  And, ∠ABC = ∠ECB = 900  ∴ BY SAS criterion of congruence  ∆ABC ≅ ∆ECB  ⇒ AC = EB [By cpctc]  ⇒ 1/2 AC = 1/2 EB  ⇒ BD = 1/2 AC
  • 3 answers

Mitul Goyal 4 years ago

..........

Amlan Panda 4 years ago

Given two opposite angles of a parallelogram are (3x − 2)º and (50 − x)º Recall that opposite angles of a parallelogram are equal. Hence (3x − 2) = (50 − x) ⇒ 3x + x = 50 + 2 ⇒ 4x = 52 ∴ x = 13 (3x − 2)º = [3(13) − 2]º = [39 − 2]º = 37º Sum of adjacent angles is 180º Hence other two equal opposite angles = 180º − 37º = 143°

Gaurav Seth 4 years ago

Given two opposite angles of a parallelogram are (3x − 2)º and (50 − x)º
Recall that opposite angles of a parallelogram are equal.
Hence (3x − 2) = (50 − x)
⇒ 3x + x = 50 + 2
⇒ 4x = 52
∴ x = 13
(3x − 2)º = [3(13) − 2]º = [39 − 2]º = 37º
Sum of adjacent angles is 180º
Hence other two equal opposite angles = 180º − 37º = 143°

  • 1 answers

Amlan Panda 4 years ago

The ordinate of point (2,3) is 3 So, the ordinate is 3 (ans).
  • 1 answers

Gpulla Array 4 years ago

401*401-399*399 = 401^2-399^2 = (401+399)(401- 399) according to identity = (800)(2) =1600
  • 3 answers

Manyata Joshi 4 years ago

False

Gaurav Seth 4 years ago

F a l s e

A n s w e r :

5 / 6 = 0 . 8 3 3 3 3 3 3 3 3 .....

so the decimal expansion is non-terminating and recurring.

place a bar over 3.

Account Deleted 4 years ago

false, the decimal expansion is non terminating repeating
  • 3 answers
Thanks guys

Surjeet Mohanty 4 years ago

25a^2-35a+12 =25a^2-15a-20a+12 =5a(5a-3)-4(5a-3) =(5a-3) (5a-4)

Yogita Ingle 4 years ago

25a²-35a+12=0

→25a²-20a-15a+12=0

→5a(5a-4)-3(5a-4)=0

→(5a-4)(5a-3)=0

→5a-4=0 or 5a-3=0

→a=4/5 or 3/5

  • 4 answers
Apni insult krwany sy acha calculator pr calculate kr lety.....???????????

Priya Barnwal 4 years ago

15???
15...??

Surjeet Mohanty 4 years ago

5+10=15
  • 5 answers

Lucky Arya 4 years ago

??
So what, what I can do for you.... ????

Rajat Goenka 4 years ago

I am also a single Can anybody help me

C Abbi 4 years ago

So what i am also single

Pushpa Singh 4 years ago

Single ??????????
  • 4 answers

Surjeet Mohanty 4 years ago

Sorry it's answer is 22

Surjeet Mohanty 4 years ago

(5-√3) (5+√3) =(5)^2-(√3)^2 =25-3 =24 (Ans)

Surjeet Mohanty 4 years ago

(5-√3) (5+√3) =(5)^2-(√3)^2 =25-3 =24 (Ans)

Gpulla Array 4 years ago

25-3=22
  • 5 answers
U r back....?
So what, I am also new ?

Alka Yadav 4 years ago

Yes , because i have also no friend

Ritika Jangra 4 years ago

You make my friend

Alka Yadav 4 years ago

Hi I am Alka Yadav
  • 1 answers

Alka Yadav 4 years ago

Solution of sum 2 ex. 4.3 - It can be observed that point ( 2 , 14 ) satisfies the equation 7x - y = 0 and x - y + 12 =0 . Therefore , 7x - y = 0 and x - y + 12 = 0 are two lines passing through point ( 2 , 14 ) . As it is known that through one point , infinite number of lines can pass through , therefore , there are infinite lines of such type passing through the given point
  • 1 answers

Yogita Ingle 4 years ago

Round off the nearest tens of 387.6 = 388

  • 1 answers

Surjeet Mohanty 4 years ago

1/√6-√7=1/√6-√7×√6+√7/√6+√7=√6+√7/(√6)^2-(√7)^2=√6+√7/6-7=√6+√7/-1
  • 1 answers

Yogita Ingle 4 years ago

To describe the position of a table lamp placed on the table, let us consider the table lamp as P and the table as a plane. Now choose two perpendicular edge of the table as the axes OX and OY. Measure the perpendicular distance ‘a’ cm of the lamp from OY. Measure the perpendicular distance ‘b’ cm of P (lamp) from OX.

Thus, the position of the table lamp P is described by the ordered pair (a, b).

  • 1 answers

Yogita Ingle 4 years ago

7 / (5√3-5√2)

= 7 (5√3+5√2)/ (5√3-5√2) * (5√3+5√2) /

=7(5√3+5√2) / (5√3)²-(5√2)²

=35√3+35√2 / 75-50

=35√3+35√2 / 25

  • 1 answers

Gaurav Seth 3 years, 11 months ago

  1. take LCM of 7 and 5
  2. LCM is 35
  3. then multiply 2 / 7 with such a number so that we could get 35 that is 2 / 7 *5= 10/35
  4. multiply 2/5 to get 35 that is 2 / 5 into 7 equals to 14 upon 35
  5. so we will have to find the numbers between 10 / 35 and 14 / 35
  6. show the numbers are 11/35 12/35 13/35
  7. we could get three numbers only but the question is we need five rational numbers
  8. so we will multiply the LCM with two that is 70 70 also comes in Table of 7 and 5
  9. then multiply 2/7 with 10 to get 20/70
  10. multiply 2/5 with 14 to get 28 / 70
  11. so now we get so many rational numbers between these two these are as follows 21 / 70 22 / 70 23 / 70 24/70 25/70 26 / 70 and so on
  • 1 answers

Gaurav Seth 3 years, 11 months ago

1. In Fig. 6.13, lines AB and CD intersect at O. If AOC +BOE = 70° and BOD = 40°, find BOE and reflex COE.

Solution:

From the diagram, we have

(AOC +BOE +COE) and (COE +BOD +BOE) forms a straight line.

So, AOC+BOE +COE = COE +BOD+BOE = 180°

Now, by putting the values of AOC+BOE = 70° and BOD = 40° we get

COE = 110° and

BOE = 30°

 

For more click:

<a href="https://mycbseguide.com/blog/ncert-solutions-for-class-9-maths-exercise-6-1/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/ncert-solutions-for-class-9-maths-exercise-6-1/&ved=2ahUKEwiWrY2woPLsAhWLwjgGHZVtARIQFjAAegQIBBAC" rel="noopener" target="_blank">NCERT Solutions for Class 9 Maths Exercise 6.1 ...</a>

  • 2 answers

Surjeet Mohanty 4 years ago

Angle b =55° and Angle c =55°

Surjeet Mohanty 4 years ago

Angle b =55° and Angle c =55°
  • 2 answers

Yogita Ingle 4 years ago

2x²-7x+6

= 2x²-4x -3x+6

= 2x ( x - 2) - 3 ( x - 2)

 

= (2x - 3) (x - 2)

2x²-6x-x+6

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