Find the coordinate of U' after a 90° counterclockwise rotation of the triangle about the origin and then a translation of 2 units down and 5 units left.

U' = (0, 1)

Step-by-step explanation:

U = (3, -5)

rotate 90° counterclockwise means (x, y) = (-y, x)

new U = (5, 3)

down 2 units means subtract 2 from the y-coordinate

newer U = (5, 1)

left 5 units means subtract 5 from the x-coordinate

U' = (0, 1)

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

0lz try yourself sorry for not answering