Which quadrilateral has all congruent sides, opposite parallel sides, and two acute angles?
a. square
b. rhombus
c. equilateral triangle
d. rectangle

true? is that what you're asking or do you mean something else?

im here

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11