Answer:
RSTU=34
Explanation:
First we need to solve for RS using the Pythagorean theorem. So, that would be:
5²+12²=RS²
25+144=RS²
√169=RS
RS= 15
Now we need to calculate for ST:
If UST is a right angle triangle then again using the Pythagorean theorem-
3²+x²=5²
9+x²=25
x²=16
ST which is x=4
The last step is to add all of the sides together to get the perimeter.
12+3+4+15= 34
Hope this helps! :)