How do i do them ? i don't know if i started them right.

Yo need asap pls ! markin da brainiest too !

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x