Explanation is in a file
bit.
ly/3a8Nt8n
To find out if the triangle is a right triangle, we must check if the following equation is true:

on the left side, we have:

and on the right side, we have:

since on both sides we get 625, we have that the brace forms a right triangle.
Sharing with three friends:
1/24 of original pie
Sharing with little brother:
1/12 of original pie
Answer: dimond
Step-by-step explanation: