Triangles DEP and D'E'F' are shown on the coordinate plane below: D
F
E
D
-8
-2-
E
F
What rotation was applied to triangle DEF to create triangle D'E'F'?
None of the above
90° counterclockwise
180°
90° clockwise

The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!