Yes, the triangle is right angled.
Step-by-step explanation:
Given lengths are;
11 yards, 60 yards and 61 yards
From pythagoras theorem;
The sum of square of shorter lengths is equal to square of larger side.
Here;
a = 11 , b = 60 , c = 61

As it satisfies the condition of Pythagoras theorem, the triangle is right angled.
Yes, the triangle is right angled.
Keywords: pythagoras theorem, addition
Learn more about pythagoras theorem at:
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Hi! Sorry, it would've taken too long to type out, so I wrote it and have the attachment. Good luck!
3.495 is written in fraction as 395/100 and in simplest form as 79/20 and in mixed fraction as (3)19/30
P.S: it is 3 whole
hope this helps :)