Answer:
Step-by-step explanation:
Answer: d = 1/3
Step-by-step explanation: 48y = 48/4 = 12. So, 2d(18) is equal to 12. 12/18 is 2/3 so 2d has to equal 2/3. That means d = 1/3.
Answer:
Regular hexagon =720
Regular octagon=1080
Step-by-step explanation:
The formula is (n-2) x 180, «n» is the side number of the polygon
The first one
So (n-2) x 180
(6-2) x 180
4 x 180
720
And the second polygon
(n-2)x 180
(8-2) x 180
6 x 180
1080
A(n) = 9 + (n - 1) * 8
2nd term....n = 2
A2 = 9 + (2 - 1)*8
A2 = 9 + 1 * 8
A2 = 9 + 8
A2 = 17 <==
4th term...n = 4
A4 = 9 + (4 - 1) * 8
A4 = 9 + 3 * 8
A4 = 9 + 24
A4 = 33 <==
11th term...n = 11
A11 = 9 + (11 - 1) * 8
A11 = 9 + 10 * 8
A11 = 9 + 80
A11 = 89 <==