Answer:
Step-by-step explanation:
To find the length of the diagonal, use Pythagorean theorem.
(diagonal)² = (length)² +(width)²
= 12² + 5²
= 144+ 25
= 169
diagonal = √ 169 = 13 units
Sum of lengths of two diagonals = 13 + 13 = 26 units
In rectangle, diagonals are of equal length.
