Between which two whole numbers is the square root of 18?

4 and 5. The square root of 16 is 4 , the square root of 25 is 5. Those two numbers are the closest to 18.

It is between 4 and 5 because when you set up the question, you put 18 in a square root sign and solve. As In:
                                                     16*Squared  = 4
                                                     18*Squared = It's between 4 and 5
                                                      25*Squared = 5

This polygon has 4 sides
180(4-2) = 180(2) = 360 degree
80+90+2x + 3x = 360
170+5x = 360
5x = 190
x= 38
measure of angle t is 2(38)= 76
the answer is c. trust me
hope this !