Answer:
Length of diagonal = 100 cm
Step-by-step explanation:
Given:
Side length of square = 
Using pythagorean theorem:
Sum of squares of sides = Square of Diagonal

Solving for x:

Therefore,
Length of diagonal = 100 cm
If the weight of the boxes that Caleb lifted is equal to c, then each box that Sergio lifted weighed c + 10. The total number of pounds that Sergio lifted is equal to the product of the number of the boxes and the weight. That is,
12(c + 10)
Thus, the answer is letter C.
I believe the answer is 2
Answer:360 degrees in a circle divide by 4 is 90
Step-by-step explanation: there are 360 degrees in a circle so divide that by 4 and you get 90