Respuesta :

The value of y is 12 and the values of AC and DC are 12 and 24

How to determine the variable and the lengths?

The given parameters are:

AD = 12

AC = 4y - 36

This means that

AC = DC

So, we have:

4y - 36 = 12

Evaluate the sum

4y = 48

Divide by 4

y = 12

Substitute y = 12 in AC = 4y - 36

AC = 4 * 12 - 36

Evaluate

AC = 12

The value  of DC is

DC = AC + AD

This gives

DC = 12 + 12 = 24

Hence, the value of y is 12 and the values of AC and DC are 12 and 24

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