1.9 x (1/4) answer as a fraction

Identify the translation rule on a coordinate plane that verifies that square a(-4, 3), b(-4, 8), c(-9, 3), d(-9, 8) and square a'(-3, 2), b'(-3, 7), c'(-8, 2), d'(-8, 7) are congruent.

If cos(θ)=2853 with θin q iv, what is sin(θ)?

You use technology ans find a sum of 6.712e-8. write this sum in standard form