Question

Find the length of the hypotenuse of a right triangle with legs of 20 cm and 21 cm.

Answer 1

H = 29cm

Answer 2

\[a ^{2}+b ^{2}=c ^{2}\]
\[20^{2}+21^{2}=h^{2}\]
\[400+441=h^{2}\]
\[841=h ^{2}\]
\[\sqrt{841}=h\]
\[h=29\]