I am pretty sure the answer is D. Record your answers and see the winning choice.
The area of each rect. would be xy, so the total area of the square would be 2xy, by definition of area of a square
Answer:
x ≈ 18.9
Step-by-step explanation:
using the cosine ratio in the right triangle
cos19° =
=
( multiply both sides by 20 )
20 × cos19° = x , then
x ≈ 18.9 ( to the nearest tenth )