CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

Given sides of the triangle are in ratio 42 : 34 :20 Semi perimeter - 42 + 34 +20 /2 = 96/2 =48 By heron 's formula = √ s ( s - a ) ( s - b) (s - c ) √ 48 (48 - 42 ) (48 - 34 ) ( 48 - 20 ) √ 48 ×6 ×14 × 28 √ 2×2×2×2×3×2×3×2×7×2×2×7 2×2×3×2×7×2 = 336 cm square

1Thank You

Khushbu Tripathi 2 years ago

336 cm square

1Thank You

ANSWER

100+150

Posted by Vetrivel N.K 2 years ago

CBSE > Class 09 > Mathematics

5 answers

Shreya Pandey 2 years ago

250

0Thank You

Account Deleted 2 years ago

250

0Thank You

Tushar Kumar 2 years ago

100+50=250

0Thank You

Vetrivel N.K 2 years ago

38808÷1000

1Thank You

Khushbu Tripathi 2 years ago

250

1Thank You

ANSWER

2√2=78

Posted by Aditya Patel 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Prabhat Kumar 2 years ago

√2=39

0Thank You

Tushar Kumar 2 years ago

√2=69

0Thank You

ANSWER

Chapter -15 Probability?

Posted by S Varsha 2 years ago

CBSE > Class 09 > Mathematics

1 answers

Prabhat Kumar 2 years ago

It is very interesting chapter

0Thank You

ANSWER

Ajay lives in delhi find value

Posted by Sareena Sareenausman 2 years ago

CBSE > Class 09 > Mathematics

3 answers

Prabhat Kumar 2 years ago

249 201

0Thank You

Tushar Kumar 2 years ago

2√2

0Thank You

Aditya Patel 2 years ago

2√2

2Thank You

ANSWER

Ajay livesin jaipur

Posted by Sareena Sareenausman 2 years ago

CBSE > Class 09 > Mathematics

1 answers

Aditya Patel 2 years ago

Sgedi

0Thank You

ANSWER

2 +2 =

Posted by Rohit Kumar Lodha 2 years ago

CBSE > Class 09 > Mathematics

5 answers

Radhika Lohchab 2 years ago

1Thank You

Khushbu Tripathi 2 years ago

0Thank You

Meer Sayeed 2 years ago

0Thank You

S Varsha 2 years ago

2 + 2 = 4

1Thank You

Chakkra Dev 2 years ago

2Thank You

ANSWER

How to find area of rhombus

Posted by Het Vaddoriya 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Prabhat Kumar 2 years ago

One upon 2 X d1 into D2

0Thank You

Shaurya Singhal 2 years ago

It can be find by 1/2 xd¹xd²

1Thank You

ANSWER

Ajay live in delhi the city of father in law's residence is at jaipur is 600km from Delhi......

Posted by Dark Gamer 2 years ago

CBSE > Class 09 > Mathematics

3 answers

Avaneesh Korde 2 years ago

ye sirf question hai

2Thank You

Dark Gamer 2 years ago

ajay lives in delhi the city of ajay's father in law residence is at jaipur is 600 km from delhi ajay's travel to 600 km partly by train and partly by car he used to buy cheap items from the delhi and sell at jaipur and also cheap items from jaipur and sells at delhi once from delhi ti to jaipur in forward journey he covered 2x km by train and rest y km by taxi but while returning he did not get a reservation form jaipur in the train so first 2y km he had to travel by taxi and the rest x km by train from delhi to jaipur he took 8 hours but in returning lit took 10 hours class 9th case based questions for class 9th maths chapter 4 Questions Find value of x and y In delhi to jaipur journey how much distance did he travel by train How much distance did he travel by taxi in both sides How much distance did he travel by train in both sides journey subject maths

20Thank You

Ritik Ghusinga 2 years ago

Yeh Kya hai

7Thank You

ANSWER

The internal and external diameter of a hollow hemispherical vessel are 24cm and 25 cm respectively. The cost of paint 1sq.cm of surface is Rs1.75. Find the total cost to the nearest rupee to paint the vessel all over . Ignore the area of the edge

Posted by Alex Moon 2 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Side of a triangle are in the ratio of 12:17:25 and its perimeter is 540 cm. Find its area?

Posted by Bhavik . 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Bhoomika Reddy 2 years ago

Given sides of the triangle are in ration 12:17:25 Perimeter=540cm a=12 𝒙 b=17 𝒙 c=25 𝒙 Perimeter=540 a+b+c=540 12𝒙 + 17𝒙 + 25𝒙 =540 54𝒙 =540 𝒙=540÷54 𝒙 = 10„, a=12𝒙=12×10=120 b=17𝒙=17×10=170 c=25𝒙=25×10=250 S=a+b+c 2 S=540 2 S=270„ By herons formula A=√s(s-a)(s-b)(s-c) =√270(270-120)(270-170) (270-250) =√(270×150×100×20 =√a×30×30×5×5×20×20 =√3²×30²×5²×20² =3×30×5×20 a=9000cm²

1Thank You

Arjav Anand 2 years ago

9000cm²

2Thank You

ANSWER

What is √77.

Posted by Adarsh Yadav 2 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Congruency types

Posted by Aditya Pal 2 years ago

CBSE > Class 09 > Mathematics

4 answers

Suprabha Barik 2 years ago

1.SSS 2.RHS 3.ASA 4.SAS 5.AAS

0Thank You

Abhijeet Shukla 2 years ago

1.SSS 2.SAS 3.ASA 4.RHS

0Thank You

Adarsh Yadav 2 years ago

1.SSS. 2.SAS. 3 AAS.4. RHS..

0Thank You

Adarsh Yadav 2 years ago

2Thank You

ANSWER

In a quadrilateral ABCD AC is equals to AD and ab bisects angle a show that triangle ABC is congruent to Triangle ABD

Posted by Aditya Pal 2 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

125.38÷8

Posted by Krishna Vimal 2 years ago

CBSE > Class 09 > Mathematics

1 answers

Prabhat Kumar 2 years ago

15. 6725

0Thank You

ANSWER

If x+y=w+z,then prove that AOB is line

Posted by Rajat Yadav 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Prabhat Kumar 2 years ago

X + y is equals to w + z X+ Y + w + said is equals to 360 X + y + X + y is equals to 360 2x + 2 y is equals to 360 X + y is equals to 360 upon 2 X + y is equals to 180 Hence aob is straight

0Thank You

Khushbu Tripathi 2 years ago

Given x+y = w+z To prove ; AOB is a line x+y+w+z = 360 ( reflex angle ) x+y = w+z w+z+ w+ z = 360 2w + 2z = 360 2(w+z) = 360 w+z = 360/2 = 180 Hence prove : AOB is a line

1Thank You

ANSWER

Chapter 7 exercise 7.1 8 summ

Posted by Abhi Yadav 2 years, 1 month ago

CBSE > Class 09 > Mathematics