X=8 I’m not that to sure but hope i helped!
30% discount of £9.50 is £2.85
in order to find out the answer you times 30 by £9.50 and you get 285 and then you divide the answer by 100 and you get £2.85
X=5(y) X is the sum of y multiplied by 5
Answer:
24 sides
Step-by-step explanation:
Angle at a point = 360°
To find the number of degrees in each interior angle of a regular polygon, we make use of
180(n - 2)/n
There are 8 sides in a regular octagon,
Each interior of a regular octagon= 180(8-2)/8
= 6 * 180/8
= ¾ * 180
= 135°
The interior angle of a regular triangle (equilateral triangle) is 60°
The interior angle of the regular n-gon is given by
360° - 135 - 60°
= 165°
Since the interior angle is 165°
Then
180(n - 2)/n = 165 for the regular n-gon
Solving for n
Multiply both sides by n
180(n - 2) = 165n ------ Open the bracket
180n - 360 = 165n ----- Collect Like Terms
180n - 165n = 360
15n = 360 ----- Divide both sides by 15
n = 360/15
n = 24
Thus, the number of sides of the regular n-gon is 24
