Answer:
Step-by-step explanation:
7x-11=-46
(7x-11)+11=-46+11
X = -5
Answer: -80
Step-by-step explanation:
X is a vertical angle to the angle marked as 100 degrees.
Vertical angles are the same so x = 100 degrees
Answer: 100 degrees
Answer:
156°
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 = 15 , then
sum = 180° × 13 = 2340°
interior angle =
=
= 156°
Answer:
±i√55
Step-by-step explanation: