Answer :
21^2+a=29^2
a+441 = 841
a=400
what is the value of "a" in the Pythagorean theorem?
a^2+b^2=c^2
20^2+21^2=c^2
400+441=c^2
841=c^2
292=841
841=841
It's a right triangle
a+441 = 841
a=400
what is the value of "a" in the Pythagorean theorem?
a^2+b^2=c^2
20^2+21^2=c^2
400+441=c^2
841=c^2
292=841
841=841
It's a right triangle