At a concert, Nabila purchased three t-shirts and a concert program that cost $15. In total, Nabila spent $90. Find the cost of
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Answer:
The measure of the interior angle C is .
Step-by-step explanation:
Sum of angles in a polygon = (n - 2) x 180
where n is the number of sides of the polygon.
For a hexagon, n = 6. So that;
Sum of angles in a hexagon = (6 - 2) x 180
= 4 x 180
=
Sum of angles in a hexagon =
⇒ 3x + 15 + 2x + 30 + 5x + 10 + 2x + 55 + 2x + 60 + x - 35 =
15x + 135 =
15x = - 135
15x = 585
x =
=
But,
C = 2x + 30
= 2(39) + 30
= 78 + 30
=
The measure of the interior angle C is .