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A farmers field is divided into several square plots of different sizes he wants to find the parameter of each plot for the purpose of fencing them he measure the length of each square and calculated the parameter for the same he found that as he has increase the length side the parameter also increased as shown in the table Length of the side perimeter 10m 40m 15m 60m 20m 80m 25m 100m 30m 120m 1. Plot the graph 2. Derive relation between two

Posted by Anjali Mishra 6 years, 2 months ago

CBSE > Class 09 > Mathematics

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Give rational no. between √3 and √5 and how to do it ??

Posted by Piyush Doshi 6 years, 2 months ago

CBSE > Class 09 > Mathematics

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Find the mean of first 10 multiples of 3

Posted by Op Om Prakash Naik 6 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 2 months ago

First 10 multiples of 3 are : 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
∴ Mean = Sum of numbers /Total number
= (3 + 6 + 9 + 12 + 15 + 18 + 21 + 24 + 27 + 30)/10
= 16.5

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prove 2+2=5

Posted by Tanjot Grewal 6 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Harkirpal Khangura 6 years, 2 months ago

Let x+2+2=5 x=1 1+2+2=5 5=5 So,LHS=RHS hence,prove

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Find five rational number 2/7 and 3/8

Posted by Pubg World 6 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Harkirpal Khangura 6 years, 2 months ago

2/7X8/8=16/56 3/8X7/7=24/56 17/56,18/56,19/56,20/56,21/56,22/56,23/56

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Anisha Singh 6 years, 2 months ago

21/ 70,29/70,25/70, 23/70,22/70 You just have to multiply and divide both the numbers with 10 and write it in the way i did

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Akshita ???? 6 years, 2 months ago

Ans_13/42 ;14/42;15/42;16/42 17/42

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(4)^2x-1 -(16)^x-1

Posted by Manish Roy 6 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Harkirpal Khangura 6 years, 2 months ago

(4)^2x-1-(16)^x-1 (2)^2X2x-1-(4)^2Xx-1 (2)^4x-1-(4)^2x-1

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Side of triangle 3:5:7,perimeter=300,find it's area

Posted by Pratap Singh 6 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Akshita ???? 6 years, 2 months ago

Ans,x =20 and area =1500√3m square

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Gaurav Seth 6 years, 2 months ago

Let the sides of a triangular plot is 3x , 5x and 7x
3x + 5x + 7x = 300 m
15x = 300
x = 300/15
x = 20
then the sides of triangular plot is
3x = (3 × 20) = 60
5x = (5 × 20) = 100
7x = (7 × 20) =140
now the area of triangular plot is

area =

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Prove sum of angles of triangle is 180°

Posted by Riya Mukherjee 6 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Anisha Singh 6 years, 2 months ago

We know sum of the angles of a square is 360° So, if we make a diagonal in the square ,the square will get divided into two equal halves forming triangle So the sum of triangle will be 360/2=180

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Define corollary

Posted by Riya Mukherjee 6 years, 2 months ago

CBSE > Class 09 > Mathematics