Respuesta :
Answer:
Step-by-step explanation:
diagonal=√(45²+28²)=√(2025+784)=√2809=53 cm
The Pythagoras is the sum of the square of two sides equal to the square of the longest side. The length of the diagonal is 53 cm.
What is a rectangle?
It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.
A rectangle has a width of 28 cm and a length of 45 cm. Then the diagonal (d) of the rectangle will be given by the Pythagoras theorem.
d² = l² + w²
d² = 45² + 28²
d² = 2025 + 784
d² = 2809
d = 59
More about the square link is given below.
https://brainly.com/question/10046743
