The measure of qr is 50 degrees what is the value of x

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?