Question

Is this a right triangle or no ​

Answer 1

Answer:

No

Step-by-step explanation:

You can determine if a triangle is a right triangle using the Pythagorean theorem:

$a^2+b^2=c^2\\leg^2+leg^2=hypotenuse^2$

Insert the given values. In a right triangle, the hypotenuse will always be the longest side, so the greatest number is c:

$4^2+7^2=11^2$

Simplify the exponents (x²=x·x):

$16+49=121$

Simplify addition:

$65=121$

Since the result is not true, the triangle is not a right triangle.

:Done