If two sides of a triangle are 6cm and 8cm and if the third side is 10cm why must it be right angled

A right triangle includes 2 legs and a hypotenuse.The hopetenuse is the larger number which would bu 10cm.And the legs would be 6cm and 8cm.Now use the Pythagorean theorem a^2+b^2=c^2

solve:a and b equal our legs.c is our hypotenuse.

8^2+6^2=10^

64+36=100

solve if 64+36=100

that is true so this is a right trangle here is also attached is an image of how the triangle would look. The square in a right trangle always point to the hypotenuse.

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation:

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz