Answer:

Step-by-step explanation:
A square is a <u>shape that which all sides are equal</u>
<em>14 is one side of the square and to find the area of a square/rectangle, you do </em><u><em>length*width </em></u>
14*14=196
Sin⁻¹ √2 = 1/√2 = 1(√2) / (√2)(√2) = √2/2
Positive 40 is the correct answer
Step-by-step explanation:
using formula that cos= b/h