Answer :

**(i)** In the given question, we have to identify the right angles

It is given in the question that,

Sides of triangle = 2.5 cm, 6.5 cm and 6 cm

(2.5)^{2} = 6.25

(6.5)^{2} = 42.25

(6)^{2} = 36

Now, it can be observed that,

36 + 6.25 = 42.25

(6)^{2} + (2.5)^{2} = (6.5)^{2}

∴ The square of the length of one side of the triangle is the sum of the squares of other two sides

Hence,

These are the sides of the right angled triangle

The right angle of the triangle will be in the front of the side 6.5 cm

**(ii)** In the given question, we have to identify the right angles

It is given in the question that,

Sides of triangle = 2 cm, 2 cm and 5 cm

(2)^{2} = 4

(2)^{2} = 4

(5)^{2} = 25

Now, it can be observed that,

(2)^{2} + (2)^{2} (5)^{2}

∴ The square of the length of one side of the triangle is not equal to the sum of the squares of other two sides

Hence,

These are not the sides of the right angled triangle

**(iii)** In the given question, we have to identify the right angles

It is given in the question that,

Sides of triangle = 1.5 cm, 2 cm and 2.5 cm

(1.5)^{2} = 2.25

(2)^{2} = 4

2.5)^{2} = 6.25

Now, it can be observed that,

2.25 + 4 = 6.25

Hence,

(1.5)^{2} + (2)^{2} = (2.5)^{2}

∴ The square of the length of one side of the triangle is the sum of the squares of other two sides

Hence,

These are the sides of the right angled triangle

The right angle of the triangle will be in the front of the side 2.5 cm

Rate this question :

Lengths of sides NCERT - Exemplar Mathematics

In a triangle, onNCERT - Exemplar Mathematics

The perimeter of NCERT - Exemplar Mathematics

Two trees 7 m andNCERT - Exemplar Mathematics

<span lang="EN-USNCERT Mathematics

<span lang="EN-USNCERT Mathematics

<span lang="EN-USNCERT Mathematics

<span lang="EN-USNCERT Mathematics

<span lang="EN-USNCERT Mathematics

Jiya walks 6 km dNCERT - Exemplar Mathematics