If the area, A, of a rectangle is 121, and the length, l, is equal to the width, w, what is the length of the rectangle?

Through trial and error, you should find that 11*11 = 121

A more methodical approach is to let x be the length and width, so x*x = x^2 is the area. Set this equal to 121 and solve for x. Use the square root to undo the square

x^2 = 121

sqrt( x^2 ) = sqrt( 121 )

x = 11

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer