Write a proof of the Polygon Interior Angle-Sum Theorem. The sum of the measures of the interior angles of a convex n-gon is 180 - (n-2).
By drawing every diagonal from one vertex in a convex, n-sided polygon, the polygon can be decomposed into N-2 triangles.
By the
the sum of the measures of the angles in a triangle is

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

69.64%

step-by-step explanation:

the answer is a.

135 and 80

step-by-step explanation:

b if for most of the graph

d if y intercept

step-by-step explanation: