Right triangless..?

Question

okay so if
a side=10
b=15
and
c=20
is this a right triangle?

and can you explain how to do this?

thanx so much!

Answer 1

Pythagorean Theorem:

The sum of the squares of the sides will add to the square of the hypotenuse.

a^2 + b^2 =c^2

So, since they give you three sides, chuck them into the formula, and see if you get the left side equaling the right side.

10^2 + 15^2 =? 20^2

100 + 225 =? 400

325 =? 400

That isn't true...so this isn't a right triangle.

Answer 2

a2+b2=c2(a square + b sqaure = c sqaure)

if a=10, b=15, and c=20 that means that once you plug in the numbers and come to the final sum, 1o should come to 100, 15 should come to 225, and 20 should come to 400. 100+225 does not equal 400 therefore it can not be a righ triangle.


100+225=325 not 400

i don't think that it is a right triangle

Answer 3

10^2 + 15^2 = 20^2
100 + 225 = 400
325 = 400

This is a scalen triangle and not a right triangle.

Answer 4

No its not.

a squared + b squared= c squared would make it a right triangle

Answer 5

no, its not
because its not phythagorean triple