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O is any point in the interior of triangle PQR.prove that OP+OQ+OR >than 1/2 (PQ+QR+PR)

Posted by Kittu Nagar 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Kittu Nagar 2 years, 1 month ago

In triangle POQ OP+OQ>PQ In triangle POR OP+OR>PR In triangle QOR OQ+OR>QR Adding OP+OQ+OP+OR+OQ+OR>PQ+PR+QR 2OP+2OQ+2OR>PQ+PR+QR 2(OP+OQ+OR)>PQ+PR+QR OO+OQ+OR>1/2 (PQ+PR+QR) Proved...

ANSWER

In the given fig. PR > than PA and S is the point on PR.such that PQ=PS. Prove that QR>SR .

Posted by Kittu Nagar 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Kittu Nagar 2 years, 1 month ago

GIVEN:PR>PQ S IS THE POINT ON PR TO PROVE:QR>SR ANGLE QSR>ANGLE SQR SINCE WE KNOW THAT SUM OF TWO SIDES OF A TRIANGLE IS ALWALYS GREATER THAN THIRD SIDE. NOW IN TRIANGLE PQR PQ+QR>PR PQ+QR>PS+SR PQ=PS (GIVEN) PS+QR>PS+SR QR>SR PROVED...

ANSWER

The diameter of the moon is approximately one fourth of the diameter of the earth find the ratio of their surface areas

Posted by Mayank Raoshab 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Arnav Jain 2 years, 1 month ago

R of moon will be 0.5and that of earth will be 2 . And we know surface area is 4piersquare so square of 0.5 will be 0.25 and that of earth will ne 2 So the ratio is 1 is to 4

ANSWER

4/2+2

Posted by Avi Nagla 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Ishika K 2 years, 1 month ago

4/2+2=4/2+4/2=8/2=4/1=4

Achyutha Bs 2 years, 2 months ago

By BODMAS 4/2+2=2+2=4

ANSWER

Is (3,8/3) a solution of 2x + 4x = 12? Verify your answer

Posted by Himanshu Parihar 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Shruti Goyal 2 years, 2 months ago

2×8/3 + 4×8/3 = 12 16/3 + 32/3 = 12 48/3 = 12 16 is not equal to 12

Meena Kumari 2 years, 2 months ago

2×3+4×3=12 6+12=12 18≠12 No ,3 is not a solution of 2x+4x=12

ANSWER

If the value of x=3+√8 what is the value of x sq. + 1/x sq.

Posted by Anahita Shahi 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Simplify (7+✓4(6+✓9)

Posted by Mihir Gaikwad 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Ishika K 2 years, 1 month ago

7(6+√9)+4(6+√9)=42+7√9+24+4√9=42+24+7√9+4√9=66+11√9

ANSWER

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Posted by Vikram Rathod 2 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

2x+y=3

Posted by Mayank Adhikari 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Ishika K 2 years, 1 month ago

2x+y-3=0

Vedika Nandanwar 2 years, 2 months ago

2x+y-3=0

ANSWER

Ttt

Posted by Mohd Zeya Shaikh 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Exercise 2.3 all questions

Posted by Muskan Kumari 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The dimensions of a rectangular box in the ratio 2:3:4 and the difference between the cost of covering it with sheet of paper at the rate of 4rs and 5rs per meter ² is 1300rs find the dimensions of the box

Posted by Bebo Verma 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

How to find x and y in a trangle

Posted by Anwesha Rai 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

L and m are two parallel lines intersected by another pair of parallel lines p and q.show that triangle ABC~= triangle CDA

Posted by Zubia Zaman 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Anshika Jain 2 years, 1 month ago

Given l and m P and q are parallel to each other. Prove ∆ ABC ~=∆ CDA . Proof , in∆ abc ~= ∆cda 1 = 2 [ alternate interior angle ] 3 = 4 [ alternate interior angle ] AC = CA [ comman side ] ∆ abc ~= ∆ cda

Mohd Zeya Shaikh 2 years, 2 months ago

Then te angle bisect to angle d

ANSWER

Pk garg

Posted by Mohammed Ayan Ahmed Qureshi 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find two solutions of the linear equation 5x-4y =-8

Posted by Aaryan Liju 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If x+y=6,x-y=2 find the value of x²+y²

Posted by Kaustubh Swarnkar 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

एक्सरसाइज 2 पॉइंट 6

Posted by Rajveer Singh 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sanjay Kumawat 2 years, 1 month ago

X3 Hf

ANSWER

140 × 96

Posted by Daksh Sharma 2 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Ishika K 2 years, 1 month ago

=13440

Kittu Nagar 2 years, 2 months ago

13440

Aditya Singh 2 years, 2 months ago

13440

Ebbani J 2 years, 2 months ago

13440

Jaiwanth R R 2 years, 2 months ago

13440

ANSWER

The product of two irrational number is irrational

Posted by Ayush Kori 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Ebbani J 2 years, 2 months ago

The product of two irrational number is always an irrational number

Mukesh Kr Yadav 2 years, 2 months ago

False , because we take √2 is a irrational no. Then product of √2 and √2 then comes 2 ans it 8s a rational no..

ANSWER

How do we solve: If the polynomial az³+4z²+3z-4 and z³-4z+a leave the same remainder when divided by z-3, find the value of a

Posted by Ashwika Vaid 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Anurag Rao 2 years, 2 months ago

-1, is the value of a .

ANSWER

Landvik

Posted by Aditya Badwaik 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Keshavowns a Mobile showroom of a popular brand. The number of mobiles sold by the shop can be represented by the expression NCO-71-25 and the Selling price per mobile is modelled by an expression S(0-26+251+ 12, where t is the number of months in a year. 0. Find the number of mobiles sold in one and half years. 10. Choose the expression which show the amount of revenue generated by the showroom a) (2t+1X1-12)(71+25) c) (71+25)(21-1X1+12) d) none of these, 2 MARKS b) (2t+1)(+12)(71 +25)

Posted by Asim Khan 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

(√7-3√7) is a

Posted by Sneha Rajput 2 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Ishika K 2 years, 1 month ago

(√7-3√7)=-2√7

Anurag Rao 2 years, 2 months ago

Irrational number

ANSWER

Simplify 8

Posted by Alok Singh Rathour 2 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Vikas Garg 2 years, 2 months ago

Ch 1

ANSWER

576√6×1/2 how to solve this

Posted by Abhinav Chauhan 3 months, 2 weeks ago

CBSE > Class 09 > Mathematics

1 answers

Anurag Rao 2 years, 2 months ago

705.312 ( approx )

ANSWER

Using remainder theorem prove that a+b,b+c,and c+a are factors of (a+b+c)³-(a3+b³+c³)

Posted by Tanishi Saravanan 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Write the unit digit of 13^21

Posted by Jai Soni 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Rationalised denominator 7/√23

Posted by Anshuman Baral Baral 2 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Ishika K 2 years, 1 month ago

7/√23=7/√23.√23/√23=7√23/23

Anurag Rao 2 years, 2 months ago

7/√23= 7×√23/√23×√23 =√23/23. Answer....

Deeika Luthra 2 years, 2 months ago

7 / √23 *√23/√23=7√23/23

Aashita Saha 2 years, 2 months ago

7/√23*√23/√23 =7√23/23

ANSWER

to make a square root spiral by paper folding method

Posted by Suryateja Gp 2 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

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