Because diagonals of a square are congruent and
have the same slope
bisect each other
are perpendicular
HELP ASAP PLEASE !!

Explain how you can use the associative property to evaluate (7x50)x4.

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

If the value of cos330°is√3/2 then find cos 165°.