Write and solve an equation to find the unknown side length x (in centimeters) perimeter = 12 cm
an equation is | | = 12
the unknown side length is | | centimeters

sorry its my first time on i need help

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.