मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता ७ वी

Find the Pythagorean triplet from among the following set of numbers. 4, 7, 8 - Mathematics

Advertisements
Advertisements

प्रश्न

Find the Pythagorean triplet from among the following set of numbers.

4, 7, 8

बेरीज
Advertisements

उत्तर

It is known that, if in a triplet of natural numbers, the square of the biggest number is equal to the sum of the squares of the other two numbers, then the three numbers form a Pythagorean triplet.

The given set of numbers is (4, 7, 8).

The biggest number among the given set is 8.

82 = 64; 72 = 49; 42 = 16

Now, 16 + 49 = 65 ≠ 64

∴ 42 + 72 ≠ 82

Thus, (4, 7, 8) does not form a Pythagorean triplet.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Pythagoras’ Theorem - Practice Set 49 [पृष्ठ ९०]

APPEARS IN

बालभारती Mathematics [English] Standard 7 Maharashtra State Board
पाठ 13 Pythagoras’ Theorem
Practice Set 49 | Q 1.6 | पृष्ठ ९०
बालभारती Mathematics Integrated [English] Standard 7 Maharashtra State Board
पाठ 13 Pythagoras' Theorem
Practice Set 49 | Q 1. (vi) | पृष्ठ ४०

संबंधित प्रश्‍न

The points A(4, 7), B(p, 3) and C(7, 3) are the vertices of a  right traingle ,right-angled at B. Find the values of p.


An aeroplane leaves an airport and flies due north at a speed of 1,000 km per hour. At the same time, another aeroplane leaves the same airport and flies due west at a speed of 1,200 km per hour. How far apart will be the two planes after `1 1/2` hours?


 
 

In an equilateral triangle ABC, D is a point on side BC such that BD = `1/3BC` . Prove that 9 AD2 = 7 AB2

 
 

Walls of two buildings on either side of a street are parallel to each other. A ladder 5.8 m long is placed on the street such that its top just reaches the window of a building at the height of 4 m. On turning the ladder over to the other side of the street, its top touches the window of the other building at a height 4.2 m. Find the width of the street.


In the given figure, AB//CD, AB = 7 cm, BD = 25 cm and CD = 17 cm;
find the length of side BC.


In equilateral Δ ABC, AD ⊥ BC and BC = x cm. Find, in terms of x, the length of AD.


In the given figure, angle ACP = ∠BDP = 90°, AC = 12 m, BD = 9 m and PA= PB = 15 m. Find:
(i) CP
(ii) PD
(iii) CD


Find the Pythagorean triplet from among the following set of numbers.

4, 5, 6


In a triangle ABC, AC > AB, D is the midpoint BC, and AE ⊥ BC. Prove that: AC2 - AB2 = 2BC x ED


Points A and B are on the opposite edges of a pond as shown in the following figure. To find the distance between the two points, the surveyor makes a right-angled triangle as shown. Find the distance AB.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×