Can the given lengths be the sides of a right triangle?

7cm, 40cm, 41cm

A right triangle has legnths that have a special relationship to each other

if you have legs legnth a and b and hypotonuse legnth c

a^2+b^2=c^2 yeilds a true statement

so the hypotonuse is normally the longest side so 41 cm is the hypotonuse

c=41

a=7

b=40

subsitute

7^2+40^2=41^2

49+1600=1681

1649=1681

false

this is not a right triangle