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The oa,ob are opposite rays and angle aoc+angle bod=90°,find angle cod

Posted by Nishaal M 6 years, 4 months ago

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Find the area of a triangle having sodes of length 15cm,28cm,41cm. Also,find the length of altitude drawn from opposite vertex to the side of length 28cm.

Posted by Vaibhav Singh Gaur 6 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Mohd Raza 6 years, 4 months ago

15+28+42=85 not 84

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Raj Kumar 6 years, 4 months ago

Given , a=15 , b=28 , c=41 Semiperimetre = 15+28+42/2 = 84/2 = 42 Area = √s(s-a)(s-b)(s-c) A=√42(42-15)(42-28)(42-41) A=√42×27×14×1 A=√2×3×7×1×3×3×3×1×2×7×1×1 A=2×3×7×3×1×1 A=126 cm*2

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Angle bisector Given value of x

Posted by Saima Noor 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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7 root 3 by 10 root 3

Posted by Deepak Santhosh 6 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Mohd Raza 6 years, 4 months ago

7/10

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Jaswinder Singh 6 years, 4 months ago

7/3 and 10/3

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Yash Jain 6 years, 4 months ago

7/10

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SIMPLIFY : 5√ x^4 4√x^3 3√x^2 √x.

Posted by Gaurav Sharma 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Sharma 6 years, 4 months ago

X119/120

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How to get 50 above .marks in maths

Posted by Sumana Singh 6 years, 4 months ago

CBSE > Class 09 > Mathematics

11 answers

Mohd Raza 6 years, 4 months ago

Practice being concentrated and interested in maths.This is how u will find maths interesting and start scoring good marks in it.

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Shakti Sarkar 6 years, 4 months ago

Practice more and ask doubts in class. It will make you a topper.

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Noty Kannika 6 years, 4 months ago

Dont feae for maths do and understand the sums method which will make you to have a good marks...

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Raj Kumar 6 years, 4 months ago

Practice and More Practice

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Mortal Combat 6 years, 4 months ago

dont get tensed

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Prashant Choubey 6 years, 4 months ago

Dont take more stress keep calm and if possible manage the last year question paper because my 32 /40 marks in maths came from last year question paper

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Sarika Sharma 6 years, 4 months ago

Do hard work and focus in math

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Shraddha Panchbhai 6 years, 4 months ago

hiiii??

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Jaswinder Singh 6 years, 4 months ago

Do more hard work and spend more time to study

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Shraddha Panchbhai 6 years, 4 months ago

do more hardwork and avoid laziness.revise it and practice it many time

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Krish Choudhary 6 years, 4 months ago

Revise syllabus more time

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Find The area of isosceles triangle with unequal side as 8cm and each side as5cm

Posted by Kanchan Saini 6 years, 4 months ago

CBSE > Class 09 > Mathematics

4 answers

Mohd Raza 6 years, 4 months ago

By herons formula

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Mohd Raza 6 years, 4 months ago

12cm sq.

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Jaswinder Singh 6 years, 4 months ago

8×5 =40

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Jaswinder Singh 6 years, 4 months ago

8×5 = 49

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If a if a transversal insert intersect two Parallel Lines then prove that each pair of alternate angle are equal

Posted by Prem Lata 6 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Jaswinder Singh 6 years, 4 months ago

Transversal are supplementary THEN the lines are parallel

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Sahil Saudagar 6 years, 4 months ago

Ruk bata ta hu

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If x=2+√3 , then find x - 1/3.

Posted by Gaurav Sharma 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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How to do middle term split up

Posted by Sanidhya Sharma 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Exercise 6.3 full questions with solutions

Posted by Ashish Meelu663 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Check solution here : https://mycbseguide.com/ncert-solutions.html

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√5-2√2 /√20+√32

Posted by Jiban Pradeep 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

√5-2√2 /√20+√32=7.260

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The class mark of the class 90-120 is

Posted by Meetu Nadir 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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If x=2+root2 find the value of x +1/x

Posted by Ankit Dubey 6 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Mohit Agrawal 6 years, 4 months ago

8+2root2

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Arnit Raj 6 years, 4 months ago

(6+root2)1/2

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4 is a zero of the polynomial, p(x)=x-4

Posted by Mukesh Yadav 6 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Sarika Sharma 6 years, 4 months ago

Yes

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45516111? 46 6 years, 4 months ago

Yes

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If pr= qs and pq=qr then prove that pq= 1/3ps

Posted by Divick Pandey 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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In triangle ABC sides AB and AC are produced to point P and Q such that angle PBC < angle QCB prove that AC >AB

Posted by Arushi Gaur 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Given : Side AB and AC of {tex}\triangle{/tex}ABC are extended to points P and Q respectively. Also ∠PBC < ∠QCB.
To Prove : AC > AB.
Proof : ∠PBC < ∠QCB
{tex}\therefore{/tex} -∠PBC > - ∠QCB
{tex}\therefore{/tex} 180^o - ∠PBC > 180^o - ∠QCB
{tex}\therefore{/tex} ∠ABC > ∠ACB
{tex}\therefore{/tex} AC > AB . . . [Side opposite to greater angle is longer]

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A plastic box 1.5 metre long 1.25 m wide and 65 M deep is to be made it is open at the top ignoring 20 metre

Posted by Disha Singh 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

l = 1.5 m, b = 1.25 m, h = 65 cm = 0.65 m
∴ The area of the sheet required for making the box.
= lb + 2(bh + hl)
= (1.5) (1.25) + 2{(1.25)(0.65) + (0.65) (1.5)}
= 1.875 + 2{0.8125 + 0.975}
= 1.875 + 2(1.7875) = 1.875 + 3.575 = 5.45 m²
The cost of sheet for it = Rs. 5.45 × 20 = Rs. 109

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In the figure of side BC of a triangle ABC and angle ACD meet at point D prove that angle BAC =1/2 angle BAC

Posted by Anas Paaha 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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solve : 21.3*100

Posted by Navya Sree 6 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Sarika Sharma 6 years, 4 months ago

2130

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Leejo Albi 6 years, 4 months ago

2130.00

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Leejo Albi 6 years, 4 months ago

2130

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High quality stock of this is the settings for broken down into the story of the main reason of mistaken delivery to your website...

Posted by Vishvesh Kashyap 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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What is the sum of angles of triangle ? ?

Posted by Ira Khan 6 years, 4 months ago

CBSE > Class 09 > Mathematics

8 answers

Aman Kumar 6 years, 4 months ago

180Degree

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Shakti Sarkar 6 years, 4 months ago

180 degrees

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45516111? 46 6 years, 4 months ago

180

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Ira Khan 6 years, 4 months ago

Did anyone other have an answer

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Ira Khan 6 years, 4 months ago

Are you sure

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Ira Khan 6 years, 4 months ago

Really

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Ira Khan 6 years, 4 months ago

Hey anyone don't know the answer

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Simran Kaur 6 years, 4 months ago

The sum of three angles of triangle is 180

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Obtain the mean of the following data. Variable ( x ) 4 6 8 10 12 Frequency (f ) 4 8 14 11 3

Posted by Kprathimani Karthick 6 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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If 10^2y = 25, then 10^-y ?

Posted by Gaurav Sharma 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Aman Kumar 6 years, 4 months ago

1/5

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a7+ab6 factorise it

Posted by Sanjay Singh 6 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 6 years, 4 months ago

Consider, a⁷ + ab⁶
              = a(a⁶ + b⁶)
              = a[(a²)³ + (b²)³]
              = a[a² + b²][a⁴ + a²b² + b⁴]

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I am quite week in maths how can i score better in maths in my exams. Please give me some ideas by can score better.

Posted by Anshuman Sharan 6 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Shakti Sarkar 6 years, 4 months ago

Ask doubts in your class and practice the problem in which you are weak. It will make you a topper.

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Sahil Prasad 6 years, 4 months ago

Solve all the example of the upcoming chapter in exams. Then solve the exercise of the upcoming chapters. But before doing this read the whole chapter. Now solve Extra questions which your teacher gives you. If she or he doesn't give any question, take a reference book and solve sums from it. The best reference books are RD Sharma, Oswal Class 9 and RS Aggrawal

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The polynomial p x = x ^ 4 - 2 x ^ 3 + 3 x ^2 minus ax+ b when divided by x -1 and X + 1 leaves the remainder 5 and 19 respectively find the value of a and b and find the remainder when PX is divided by x - 2

Posted by Khushi Ranjan 6 years, 4 months ago

CBSE > Class 09 > Mathematics