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Ex 2.5

Posted by Abc Def 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Express in p/q form

Posted by Sunaina Yadav 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Maneesh R.K 3 years ago

Ex 5/7

Maneesh R.K 3 years ago

Give the sum

ANSWER

What is coordinating geometry

Posted by Hansika Rajput 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Mahi Sharma 2 years, 11 months ago

On simple form It is a data which is used to represent coordinates or one or more than one number to determine the position of the points

Mahi Sharma 2 years, 11 months ago

In geometry, a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

ANSWER

The sides of a triangle are 25 cm ,17 cm and 12cm . The length of the longest altitude is equal to

Posted by Lakshita Bora 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Rahul Gurjar 3 years ago

25+12+17÷2=27 =√27(27-25)(27-17)(27-12) =√27(2)(10)(15) =√9×3×2×5×2×5×3 =3×3×2×5 =90 Altitude to the longest side 90=½×12 90×2÷12=h 180÷12=h 15=h

Md Abdal 3 years ago

Longest altitude always forms from the shortest side

ANSWER

The lateral surface area of a cuboid is 256 cm square . Find its volume

Posted by Diya Sahu 3 years ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years ago

512cm ³

ANSWER

Insert 16 rational number between 2.1 and 2.2

Posted by R K 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Maneesh R.K 3 years ago

2.111 2.112 2.113 2.114 2.115 2.116 2.117 2.118 2.119 2.120 2.121 2.122 2.123 2.124 2.125 2.126 2.150

Sachin Negi 3 years ago

2.1/1× 17/17 and 2.2/1×17/17

ANSWER

a=9-4√5 find √a-1/√a

Posted by Raghav Garg 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Dharmendra Singh Dharmendra Singh 3 years ago

7+9

Dharmendra Singh Dharmendra Singh 3 years ago

5_7

ANSWER

Case study of chapter third class ninth

Posted by Tamkin Banu 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

What is the primary data

Posted by Abhishek Pandey 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Harjot Singh 3 years ago

The data we collect ourself

Sachin Negi 3 years ago

Primary data also called internal data

ANSWER

ABCD is a square find DMP

Posted by Akshita Tomar 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

What is 1st term sullabus

Posted by Shubham Kumar 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Himanshi Goyal 2 years, 11 months ago

Chapter 1 Chapter 3 Chapter 6 Chapter 7 Chapter 12 Chapter 14

Kanchan Gadwal 3 years ago

Chapter 1 , 3, 4,6,7,12,14

ANSWER

[1/4a-1/2b+1]²

Posted by Fatima Fatima 3 years ago

CBSE > Class 09 > Mathematics

1 answers

Laya Varshini.P ... 3 years ago

1

ANSWER

g=t⅔+4t-½ whatcis the value of h when t =64

Posted by Ayush Sahu 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

AB||CD||EF If Z=60°x&y If 3z=2x find y If y=2 (2+15°) find x

Posted by Charu Damor 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

325 /26

Posted by Prathibha. D 3 years ago

CBSE > Class 09 > Mathematics

3 answers

Himanshi Goyal 2 years, 11 months ago

12.5

Laya Varshini.P ... 3 years ago

12.5

Anak Yadav 3 years ago

Answer is 12.5

ANSWER

The following is the distribution of total household expenditure (in₹) of manual worker in a city

Posted by Sofia Das 3 years ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years ago

Please complete your question.

ANSWER

Are yar maths ka paper aane wala hai term 1 ka konsa chapter ache se padhke jau ye btaado ??

Posted by Vrinda Sharma 3 years ago

CBSE > Class 09 > Mathematics

3 answers

Ayush Sahu 3 years ago

sare padh l9

Huda Khan 3 years ago

7 bhi bht important h

Sujeet Roy 3 years ago

1 , 3 , 4 , 6 , 7 , 12 , 14 syllabus he aur 1 , 6 , 12 , 3 padhke jha

ANSWER

AB is a line segment p and q are points on opposite sides of AB such that each of them is equidistant from the points A and B show that the line pq is the perpendicular bisector of AB

Posted by Taniya T 3 years ago

CBSE > Class 09 > Mathematics

1 answers

Ansh Tyagi 3 years ago

It's simple ??

ANSWER

ABCD is a rhombus and p, q ,r and s are the mid-points of the sides AB,BC, CD and DA respectively . Show that the quadrilateral PQRS is a rhombus.

Posted by Sohani Khatun 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Vanshika Agarwal 3 years ago

Either the question will be ABCD is a rhombus and p, q ,r and s are the mid-points of the sides AB,BC, CD and DA respectively . Show that the quadrilateral PQRS is a rectangle. Either it will be ABCD is a rectangle and p, q ,r and s are the mid-points of the sides AB,BC, CD and DA respectively . Show that the quadrilateral PQRS is a rhombus.

Vanshika Agarwal 3 years ago

Ur question is wrong

ANSWER

Ex.6.2 ka 5th question

Posted by Shivang Shakya 3 years ago

CBSE > Class 09 > Mathematics

3 answers

Mahi Sharma 2 years, 11 months ago

In figure 6.31 if AB is parallel to CD,Angle APQ = 50° and angle PRD=127° Find x and y

Vanshika Agarwal 3 years ago

NCERT BOOK?

Sia ? 3 years ago

Please write full question.

ANSWER

If 3,1 and 1,0 lie on the graph of x/a+y/b=1

Posted by Mukes Akash 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Vanshika Agarwal 3 years ago

Plz complete your question

Sia ? 3 years ago

Complete your question.

ANSWER

AC=BD and AB bisects angle A. Show that triangle ABCD is congruent to triangle ABD what can you say about BC and BD

Posted by Mariyam Shahid 3 years ago

CBSE > Class 09 > Mathematics

4 answers

Vandana Yashu 3 years ago

Given:AC=BD----1 AB bisects angle A Therefore angle BAC =angle BAD----2 In ∆ABC and ∆ABD AC=AB(by equation 1) Angle BAC=angle BAD (by equation 2) AB=AB (common) Therefore by SAS axiom ∆ABC~∆ABD By CPCT BC=BD

Vandana Yashu 3 years ago

AC =BD and AB bisects angle A .Show that ∆ ACB ~∆ABD ,what can you say about BC and BD?

Vanshika Agarwal 3 years ago

Reason- How a triangle can be ABCD?

Vanshika Agarwal 3 years ago

Ur question is wrong

ANSWER

If x is a positive real number and x 2 = 2, then x3=?

Posted by Sahil Kumar 3 years ago

CBSE > Class 09 > Mathematics

4 answers

Shubham Kumar 3 years ago

2√2

Vanshika Agarwal 3 years ago

Answer-3

Utkarsh Agarwal 3 years ago

x² = 2 then x ³ =2√2 EXPLANATION : Let the no.'x' be √2 Now when you put the value of X in the first eq. you will get √2 *2 =2 Now put this value of X in the second eq. you will get √2*√2*√2 = 2√2

Bhagya Singla 3 years ago

2x=2 x=2/2 x=1 Then, 3x Put (x=1) 3(1)= 3

ANSWER

AB IS A LINE SEGMENT AND P IS THE MID POINT D AND E ARE POINTS ON THE SAME SIDE OF AB SUCH THAT ANGLE BAD =ANGLE ABE AND ANGLE EPA =ANGLE DPB SHOW THAT TRIANGLE DAP CONGRUENT TRIANGLE EBP AD = BE

Posted by Om Dedai 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A park, in the shape of a quadilateral ABCD, has C=90°, AB=9m,BC=12m, CD=5m and AD=8m.How much area does it occupy

Posted by Likith Sai 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If the polynomials p(x)=x3+ax2+5x+2 and q(x)=2x3−ax+6 leave the same remainder when divided by (x+2), find the value of a.

Posted by ✨ 🦋 3 years ago

CBSE > Class 09 > Mathematics

2 answers

Hamla Niba 3 years ago

-13

Amit Keshri 3 years ago

-13

ANSWER

A rhombus ABCD such that AB is equal to 10 cm and angle b is equal to 120 degree then the area of Rhombus ABCD is

Posted by Neeldeep . 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

√(3-2√2)

Posted by Anil Jaithalia 3 years ago

CBSE > Class 09 > Mathematics

3 answers

Laya Varshini.P ... 3 years ago

0.41

Aditya Pal 3 years ago

O

Jeetesh Prasad 3 years ago

√2+1

ANSWER

2x × 3x^2 +3^10 - 10/17

Posted by Laksh Manorkar 3 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Show that the diagonals of a square are equal and bisect each other at right angle.

Posted by Khushi Dhillon 3 years ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years ago

Given: A square ABCD.

To Prove : (i) AC = BD and (ii) Diagonals bisect each other at right angles.
Proof :

In {tex}\triangle{/tex}ADB and {tex}\triangle{/tex}BCA, we have
AD = BC ...[As sides of a square are equal]
{tex}\angle{/tex}BAD = {tex}\angle{/tex}ABC ...[All interior angles are of 90^o]
AB = BA ...[Common]
{tex}\triangle{/tex}ADB {tex}\cong{/tex} {tex}\triangle{/tex}BCA ...[By SAS rule]
AC = BD ...[c.p.c.t.]
Now in {tex}\triangle{/tex}AOB and {tex}\triangle{/tex}COD, we have
AB = CD ...[Sides of a square]
{tex}\angle{/tex}AOB = {tex}\angle{/tex}COD ...[Vertically opp. angles]
{tex}\angle{/tex}OBA = {tex}\angle{/tex}ODC ...[Alternate interior angles are equal]
{tex}\triangle{/tex}AOB {tex}\cong{/tex} {tex}\triangle{/tex}COD ...[By ASA rule]
OA = OC and OB = OD ...[c.p.c.t.] ...(1)
Now consider {tex}\triangle{/tex}s AOD and COD.
AD = CD ...[Sides of square]
OA = OC ...[As proved above]
OD = OD ...[Common]
{tex}\triangle{/tex}AOD {tex}\cong{/tex} {tex}\triangle{/tex}COD ...[By SSS rule]
{tex}\angle{/tex}AOD = {tex}\angle{/tex}COD ...[c.p.c.t.]
But {tex}\angle{/tex}AOD + {tex}\angle{/tex}COD = 180° ...[linear pair]
or {tex}\angle{/tex}AOD + {tex}\angle{/tex}AOD = 180° ...[As {tex}\angle{/tex}AOD = {tex}\angle{/tex}COD]
or 2{tex}\angle{/tex}AOD = 180° {tex}\therefore{/tex} {tex}\angle{/tex}AOD = 90° ...(2)
From equation (1) and (2) it is clear that diagonals of a square bisect each other at right angles.

ANSWER

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