Question

The sides of a triangle are given below. Check whether or not the sides form a right-angled triangle.

$3cm,8cm,6cm$

• A. Yes
• B. No
• C. Can't say
• D. Data insufficient

Answer 1

Answer: (B)

No

Given, sides of triangle
$a=3$ cm
$b=6$ cm
$c=8$ cm

For a triangle to be a right angle triangle, the square of largest side(hypotenuse) should be equal to the sum of squares of the other two sides.

$c^2=8^2=64$
$a^2+b^2=3^2+6^2=9+36=45$
Since, $a^2+b^2\ne c^2$

Hence, the triangle is not a right-angled triangle.