Question

The length of the hypotenuse of a right triangle is 13 m. The length of one leg is 5 cm. Find the length of the other leg.

Answer 1

Use pythagoras
\[\large 13^2 = a^2 + 5^2\]
Now try to solve for a.

Answer 2

8?

Answer 3

You can't just drop the square roots from all of them.

\[\large 13^2 = a^2 + 5^2 \]
\[\large 169 = a^2 + 25\]