Answer: Mr. Lee’s entire face crinkles and lights up when he smiles.
Step-by-step explanation:
If two angles are complementary, then the sum of their measures is 90
If the sum of their measures is 90, then the two angles are complementary.
The associtive property is the rule that refers to grouping.
Answer:
x = 110°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 6, thus
sum = 180° × 4 = 720°
Sum the given angles and equate to 720
125 + x + 130 + 90 + 165 + 100 = 720, that is
610 + x = 720 ( subtract 610 from both sides )
x = 110°
