The Pythagorean Theorem states that in a right triangle,
, where a and b are the legs and c is the hypotenuse.
Plugging in this formula, we can identify if DEF is a right triangle.
![25^(2) +27^(2) = c^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/5dtp1lkos6u7pi6drd3bxocte2qtxgg4jm.png)
The first step is to plug in our known values.
![625 + 729 = c^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/4ccdivvifxi88ys36dehnwl3sfcluotyni.png)
Next, we'll square both values available.
![1354 = c^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mi4iyi74zz5jn7jal93tvpgmej09rsfkly.png)
From there, we'll add the values together.
![36.7967.. = c](https://img.qammunity.org/2021/formulas/mathematics/middle-school/tgis0jlv7zqfsha32d3p74ebob1p6fihpx.png)
Finally, we'll find the square root of our value to get c.
Since our answer is ~36, and the value we're given for the hypotenuse is 48, this is not a right triangle since the values aren't the same.
Therefore, the answer is False.
Hope this helped! :)