Select all the correct answers.
You’re given two side lengths of 3 centimeters and 5 centimeters. Which measurement can you use for the length of the third side to construct a valid triangle?

1) 8 centimeters
6) centimeters
4 )centimeters
10) centimeters
2) centimeters

A triangle is valid if sum of its two sides is greater than the third side. Means if a, b, c are three sides of a triangle. Then the triangle is valid if all three conditions are satisfied. a + b > c.

Step-by-step explanation:

we have our a = 5

                      b = 3                

5+3 is 8 so or c must be lesser than 8 it can be 6 , 4 or 2

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

x = 3 ± √(5+y)