Question

The vertices of triangle IJK have coordinates I(−5, −2), J(−5, −4), and K(−4, −4).

Which coordinates are the coordinates of the vertices of triangle IꞌJꞌKꞌ when triangle IJK is rotated 180° clockwise around the origin?

Answer 1

see i
if O is origin .....let P (x , y) with respect to axes OX and OY.....and let P(x' , y') with respect to axes OX' and OY' where angle X'OX = angle Y'OY = \[\theta \]
then
x' = x cos(theta) + y sin(theta)
y' = -x sin(theta) + y cos(theta)

Answer 2

okay then what ? @rishavraj

Answer 3

u got the angle theta = 180 degrees....
so just plug the values

Answer 4

like for I
I' (x' , y')
x' = -5 cos(180) + (-2) sin(180)
y' = 5 sin(180) + (-2) cos(180)
@princess_hannahleigh

Answer 5

I still dont get it !

Answer 6

@rishavraj

Answer 7

@princess_hannahleigh

Answer 8

@princess_hannahleigh u there???