PW Centres PW Skills Ask Doubt

All Courses
- IIT JEE
- NEET
- UPSC
- UPSC OFFLINE
- GATE
  - Civil
  - Mechanical
  - CS & IT
  - ECE
  - EE
  - Instrumentation
- MBA
  - CAT
- SCHOOL PREP
  - Class 12th
  - Class 11th
  - Class 10th
  - Class 9th
  - Class 8th
  - Class 7th
  - Class 6th
- GOVT JOB EXAMS
  - SSC
  - Banking
  - Teaching
- Defence
  - NDA
  - CDS
  - AFCAT
  - Agniveer
- COMMERCE
  - Class 11th
  - Class 12th
- CA
  - Foundation
  - Intermediate
- IIT JAM & CSIR NET
- STATE PSC
  - MPSC
  - BPSC
  - UPPSC
- LAW
- AE/JE
- CUET

Call Us 07019-243-492
All Courses
- - IIT JEE
  - NEET
  - UPSC
  - UPSC OFFLINE
  - GATE
    - Civil
    - Mechanical
    - CS & IT
    - ECE
    - EE
    - Instrumentation
  - MBA
    - CAT
  - SCHOOL PREP
    - Class 12th
    - Class 11th
    - Class 10th
    - Class 9th
    - Class 8th
    - Class 7th
    - Class 6th
  - GOVT JOB EXAMS
    - SSC
    - Banking
    - Teaching
  - Defence
    - NDA
    - CDS
    - AFCAT
    - Agniveer
  - COMMERCE
    - Class 11th
    - Class 12th
  - CA
    - Foundation
    - Intermediate
  - IIT JAM & CSIR NET
  - STATE PSC
    - MPSC
    - BPSC
    - UPPSC
  - LAW
  - AE/JE
  - CUET
PW Centres
PW Skills
Ask Doubt

Home
Heron's Formula
solved question

Question of solved question

Heron's Formula of Class 9

Question
Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.

Correct Answer

Frequently Asked Questions

MENSURATION
AREA OF TRIANGLE WITH GIVEN BASE AND HEIGHT
APPLICATION OF HERON’S FORMULA IN FINDING AREAS OF QUADRILATERALS
SOME IMPORTANT FORMULA
Mind Map
solved question
Exercise 1

Get Access To Our
Free Batches Now

Get instant access to high-quality material

+91 -

CLASS 6
Class-6 Theory & Notes
CLASS 7
Math's Notes for class 7
Science Notes for class 7
Ask your Doubts
CLASS 8
Class 8 Math Notes
Class 8 Chemistry Notes
Class 8 Physics Notes
Class 8 Biology Notes
Class 8 SST Notes
Ask Your class 8 Doubts

CLASS 9
Class 9 Math's Notes
Class 9 Physics Notes
Class 9 Chemistry Notes
Class 9 Biology Notes
Chapter wise Online Quiz Class 9
CLASS 10
Class 10 Math's Notes
Class 10 Chemistry Notes
Class 10 Physics Notes
Class 10 Biology Notes
Aptitude & Reasoning
Class 10 Geography

CLASS 10
History Class 10
Economics
CBSE Class 10 Civics
English sample papers
Sanskrit
CLASS 11
Physics Class 11 Notes
Class 11 Chemistry Notes
Maths Notes Class 11
Zoology Class 11
Class 11 Botany Notes

CLASS 12
Physics Class 12 notes
Chemistry Class 12
Maths Notes Class 12
Zoology class 12
Class 12th Botany Notes

NCERT Solutions For Class 6
NCERT Solutions For class 7
NCERT Solutions for class 8
NCERT Solutions for class 9
NCERT Solutions for class 10
NCERT Solutions for class 11
NCERT Solutions for Class 12

CLASS 6
Worksheet for class 6 Math's
Worksheet for class 6 Science
CLASS 7
Worksheet for Math's
Worksheet for class 7 Science
RS Aggarwal Solutions for Math's
CLASS 8
Worksheet for Class 8
Sample paper Class 8 Math's
Sample papers class 8 science
Important Questions Math's
Important Questions Class 8 Science
R.S Aggarwal Class 8 Solution
lakhmirsingh Solution for Science

CLASS 9
Worksheet for Class 9
RS Aggarwal solution
RD Sharma Solution
PS Verma & VK Agarwal Biology Solutions
Lakhmir Singh physics solutions
Lakhmir Singh Chemistry Solutions
NCERT Exemplar for Math's
CBSE Important Questions Math's pdf
MCQ Questions Science with Answers
CBSE Sample Papers Math's
CBSE Sample Papers Science
ICSE Math's Solutions

CLASS 10
Worksheet for class 10
Vedic Math's
RS Agarwal's solutions
RD Sharma solutions
NTSE Sample papers
NTSE Previous year papers
Olympiad questions
CLASS 11
KVPY Previous Year Papers
Sample papers
Revision Notes for class 11 Physics
Name Reactions of Organic chemistry
Biology MCQ

CLASS 11
Chemistry MCQ
Physics MCQ
Math's MCQ
RD Sharma solutions
CLASS 12
Important Questions Math's
Important Questions Physics
Important Questions Chemistry
Important Questions Biology
CBSE Sample papers
CBSE Previous year Papers
HC Verma Solutions
RD Sharma solutions

Entrance exam Resourses
Sample papers for Entrance exam
JEE Main Previous Year papers
JEE Advance previous year papers
NEET Previous year papers
BITSAT previous year papers
Olympiad previous year Papers
Integer Based Questions
Biology MCQ For NEET
Questions class wise

Entrance exam Resourses
Science formulas
Chemistry formulas
Physics formulas
Math's Formulas
About JEE Main
About NEET
BITSAT
Entrance exam
JEE Main
NEET

Entrance exam
BITSAT
More engineering exam
More Medical Exam
Olympiads exam
Study Materials
Class 10 ICSE
Revision Material Physics
Revision Material Biology
Name reactions organic chemistry

UP Board
Maharashtra State Board
AP Board
Bihar School Examination Board Details
Gujarat Board
Rajasthan Board
MP Board of Secondary Education
Karnataka Examination Board
Kerala Board
Tamil Nadu State Board
Telangana Board of Education
West Bengal Board

Physics Wallah Foundation
Competition Wallah
JEE Wallah
NCERT Wallah
PW Pathshala
Defence Wallah
Physics Wallah - English
PW - Hindi Medium
PW Bangla

Commerce Wallah by PW
PW Vidyapeeth
PW Maharashtra
PW Kannada
PW Gujarati
PW Telugu
PW Sarkari Exams
PW Facts
PW Little Champs

CA Wallah by PW
PW Insider
GATE Wallah
GATE Wallah - EE, EC & CS
GATE Wallah - ME, CE & XE
GATE Wallah (English)
UPSC Wallah
College Wallah

Teaching Wallah
SSC Wallah
Banking Wallah
JEE Challengers by PW
PW IIT JAM & CSIR NET
MBA Wallah
Alakh Pandey
UPSC Wallah - Hindi Medium

Online Quiz for Class 6 Science
Online Quiz for Class 6 Math's
Online test for class 7 Math's
Online test for class 7 Science
Chapter wise Class 8 Math's Quiz
Chapter wise Class 8 Science quiz
Chapter wise Online Quiz Class 9
Chapter wise online Quiz for class 10
Chapter wise Quiz for class 11
Chapter wise class 12 Quiz

physics wallah

We understand that every student has different needs and capabilities, which is why we create such a wonderful and unique curriculum that is the best fit for every student.

download-app

app-store

Follow Us:

insta

tube

For media enquiries : pr@pw.live

Know about Physics Wallah

Physics Wallah is India's top online ed-tech platform that provides affordable and comprehensive learning experience to students of classes 6 to 12 and those preparing for JEE and NEET exams. We also provide extensive NCERT solutions, sample papers, NEET, JEE Mains, BITSAT previous year papers, which makes us a one-stop solution for all resources.

Physics Wallah also caters to over 3.5 million registered students and over 78 lakh+ Youtube subscribers with 4.8 rating on its app.

We Stand Out because

We successfully provide students with intensive courses by India's top faculties and personal mentors. PW strives to make the learning experience comprehensive and accessible for students of all sections of society. We believe in empowering every single student who couldn’t dream of a good career in engineering and medical field earlier.

Our Key Focus Areas

Physics Wallah's main focus is to make the learning experience as economical as possible for all students. With our affordable courses like Lakshya, Udaan and Arjuna and many others, we have been able to provide a platform for lakhs of aspirants. From providing Chemistry, Maths, Physics formula to giving e-books of eminent authors like RD Sharma, RS Aggarwal and Lakhmir Singh, PW focuses on every single student's need for preparation.

What Makes Us Different

Physics Wallah strives to develop a comprehensive pedagogical structure for students, where they get a state-of-the-art learning experience with study material and resources. Apart from catering students preparing for JEE Mains and NEET, PW also provides study material for each state board like Uttar Pradesh, Bihar, and others.

PW Pathshala

Centers

PW Tuition

Centers

The vision of PW Tuitions is to prepare students for a better future both academically and skill based at the most affordable prices.

PW Vidyapeeth

School Centre

The PW Learning Hub, a new-age Hi-Tech classrooms designed to train students for academic and competitive success.

Terms & Conditions Privacy Policy About Us Careers Contact Us

Copyright © 2023 Physics Wallah Pvt. Ltd. All rights reserved.

Talk to Our counsellor

Give a missed call
07019-243-492

Talk to Our counsellor

group

group