Question

medal and fan

The numbers 20, 21, and c are a Pythagorean triple.

What is the value of c?

A.
22

B.
29

C.
41

D.
25

Answer 1

I really don't know how to explain this, what do you think it is?

Answer 2

idk thats why i posted the question ..

Answer 3

Right... http://nrich.maths.org/1309 says, "These...give the Pythagorean triple a=20, b = 21 and c=29" So the last part of the triple is 29.

Answer 4

thankyou :)

Answer 5

solve for c

a^2 + b^2 = c^2
20^2 + 21^2 = c^2

Answer 6

You could also use that ^