Can a right triangle be formed using these squares

Yes because the sides of square 1 is 5, square 2 is 12, and square 3 is 13. 5,12,13 is a known pythagorean triple and you can prove that 5^2 + 12^2 = 13^2. 25+144 does indeed equal 169.
Answer:
Yes, the sum of the smaller squares equals the largest square.
Step-by-step explanation:
Look at the picture.
In a right triangle, the area of the square whose side is hypotenuse (the longest side of the triangle) is equal to the sum of the squares on the other two sides (shorter sides of the triangle).
We have:
169 < 144 < 25
Check the equality:
169 = 144 + 25
R = 144+ 25 = 169
L = 169
L = R CORRECT