What is the supplementary angle of 72 degrees

180 is supplementary

90 is complementary

Step-by-step explanation:

To find the answer subtract it so 180-72=108 and to check 108 + 72 = 180.

Hope this helps

5•x=? and 8•5=40, personal opinion: the left rectangle is most likely a square so if you need to solve it it's 5•5=10

Step-by-step explanation:

A(area)=l (length)•w (width)

just plug in your numbers, in this case it would be 8(length) times 5(width)