In a certain triangle x, y,z represents side lengths if x=7 and z=5 what must be true about y

Step-by-step explanation:

Given

Required

What must be true about y?

To answer this, we first calculate the range as follows;

and

For Minimum, we have:

For Maximum, we have:

The values of y are then bounded by the following:

This gives

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

yes

step-by-step explanation: