This isnt the simplist but 875/1000 . Thats 875 over 1000.
What’s the original question and I can help!
Answer:
The length of side x is 
Step-by-step explanation:
Pythagorean Theorem:
In a right triangle, with sides a and b, and hypothenuse h, we have that:

In this question:
The vertical line on the sides means that both are equal, that is, measuring x, so
.
Hypothenuse is the square root of 12. So 





The length of side x is 
Polygons include
triangles
rectangle
square
pentagon
hexagon
etc.
Answer:70
Step-by-step explanation: