Prove the symmetric property of congruence

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.