Perimeter of Triangle
Perimeter of Triangle
|
The sum of the lengths of the sides is the perimeter of any polygon. In the case of a triangle, Perimeter = Sum of the three sides. Always include units in the final answer. If the sides of the triangle are measured in centimeters then the final answer should also be in centimeters. Formula for Perimeter of Triangle: The formula for the perimeter of a closed shape figure is usually equal to the length of the outer line of the figure. Therefore, in the case of a triangle, the perimeter will be the sum of all three sides. If a triangle has three sides A, B, and C, then, Perimeter, X = A + B + C, If A, B, and C are the side measures, and X is the perimeter. |
 |
Scalene Triangle: If a triangle has all three sides of different lengths, it is called a scalene triangle.
Perimeter of Scalene triangle: It can be calculated by finding the sum of all the unequal sides.
Hence, Perimeter = a + b + c, where "a", "b", and "c" are the different sides.
Isosceles Triangle: If a triangle has two sides of equal length, it is an isosceles triangle.
Perimeter of Isosceles triangle: The perimeter of an isosceles triangle can be calculated by finding the sum of the equal and unequal sides.
Hence, Perimeter = 2a + b where, a = sides of equal length and b = the third side (unequal side)
Equilateral Triangle: If a triangle has all the sides of equal measure, it is called an equilateral triangle.
Perimeter of Equilateral Triangle: where a = length of each side of the triangle.
Right Triangle: A triangle that has one of the angles as is called a right-angled triangle or a right triangle.
Perimeter of Right Triangle: Its perimeter can be calculated by adding the given sides.
Hence, Perimeter = a + b + c
Isosceles Right Triangle: A right triangle with two equal sides and two equal angles is called an isosceles right triangle.
Perimeter of Isosceles Right Triangle: Its perimeter can be calculated by adding the given sides.
Hence, Perimeter = 2l + h where, l = length of the equal side and h = length of the third side
Illustration: Find the perimeter of a triangle having two equal sides of measure 7 cm and one unequal side of measure 6 cm.
Solution: As we know that If a triangle has two sides of equal length, it is an isosceles triangle. Also, we know that the Perimeter of isosceles triangle = 2a + b
Find the perimeter of the triangle given below
| |||
| Right Option : C | |||
| View Explanation | |||
Find the perimeter of an equilateral triangle of side 9 cm. | |||
| Right Option : C | |||
| View Explanation | |||
Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is its third side? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
Hridey Preet
9thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
