Answer: 
Step-by-step explanation:

Divide by 23

Extract the square root.

A = 35 sq ft
<span>L = 10 ft </span>
<span>W = 3.5 ft</span>
Sin74 = Cos16
cause 16 + 74 = 90
Whenever the sum of two angles is equal with 90, the Sin of one is equal with the Cos of the other like :
Sin(30) = Cos(60)
and also
Tan(30) = Cot(60)