Question

Find the length of the third side. If necessary, round to the nearest tenth.14.21Answer:Submit Answer

Answer 1

This problem is about a right triangle, which means we have to use the Pythagorean Theorem to find the missing leg.

`c^2=a^2+b^2`

Always keep in mind that c represents the hypotenuse (the longest side), while a and b are the legs. In this case, we have c = 21 and a = 14. Let's use these values and find b.

`21^2=14^2+b^2`

Now, we solve for b.

`\begin{gathered} 441=196+b^2 \\ 441-196=b^2 \\ 245=b^2 \\ b=\sqrt[]{245} \\ b\approx15.7 \end{gathered}`

Therefore, the missing leg is 15.7 units long.