Answer:
y ≈ 55.2°
Explanation:
the opposite sides of a rectangle are congruent (equal) and angles are right
using the right triangle formed by the diagonal on the left side
using the tangent ratio in this right triangle
with opposite side = 36.3 cm and adjacent side = 25.2 cm , then
tany =
=
, then
∠ y =
(
) ≈ 55.2° ( to 1 decimal place )