Question

Yes or No: Is this triangle a Right Triangle with side measures 21, 28, 35?

Answer 1

yes

Explanation:

Hello There!

In order for a right triangle to be a right triangle the hypotenuse ( longest side) squared must equal the sum of the two shorter sides squared

so if this is a right triangle then

`21^2+28^2=35^2\\21^2=441\\28^2=784\\784+441=1225\\35^2=1225\\1225=1225`

so as you can see 21^2+28^2 does = 35^2 so the side measures given do make a right triangle