The statement "<em>the square of the longest side is equal to the sum of the squares of the two shorter sides" </em>is true for a right-angled triangle.
<u>(a) 5 cm, 12 cm and 13 cm</u>
The statement is represented as:
Hence, the statement is true for triangle (A)
<u>(b) 4 cm, 5 cm and 7 cm</u>
The statement is represented as:
Hence, the statement is not true for triangle (B)
<u>(c) 3 cm, 4 cm and 5 cm</u>
The statement is represented as:
Hence, the statement is true for triangle (C)
<u>(d) 9 cm, 12 cm and 15 cm</u>
The statement is represented as:
Hence, the statement is true for triangle (D)
Read more about triangles at:
brainly.com/question/19182121