Question

Allie wants to make sure that the pieces of

cloth for a costume are right triangles.
Determine whether the triangle is a right
triangle.

Answer 1

for this, you have to use the pythagorean theorem, which is a^2+b^2=c^2

to know if this is a right triangle, you first add your a^2+b^2.

in this case, it’s 12 and 5. (remember that c^2 is always the biggest number, so you have to add the 2 smallest!)

a and b can be added in any order, it doesn’t matter which one goes first.

a) 12^2 = 144
b) 5^2 = 25
c) 13^2 = 169

now, you add 144+25, if it’s 169, it’s a right triangle, if it’s not then it’s NOT a right triangle.

144+25 does equal to 169 so your answer is, yes it IS a right triangle.