we are given

Since, every value is in ft
so, we can take out ft

now, we can add them
and we get
............Answer
<span>According to the Exterior Angle Theorem, the</span> measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle.
11x+2=5x+10 + 58
6x=66
x=11
Answer:
commutative property is C+2+0=C+2
(As a+b=b+a is the law of commutative property of addition )