Given parameters:
Each interior angle = 150°
Unknown:
The number of sides of this regular polygon = ?
Solution:
To find the sum of internal angles of a regular polygon, we use the expression below;
(n - 2) x 180 = sum of internal angles of a polygon
n is the number of sides,
Also, the sum of the internal angles of a polygon = number of sides x internal angles;
So;
(n-2) x 180 = 150 x n
Solve for n;
180n - 360 = 150n
180n - 150n = 360
30n = 360
n = 12;
Therefore, the number of sides is 12
Answer:
B
. Areas near the equator get more direct sunlight so the temperatures are higher.
Explanation:
At equator, the sun is always over head and hits the surface directly. The surface is no at an angle to the sun.
The insolation here is very great and they received more direct sunlight.
- Due to the high insolation, the temperature is higher than most part of the earth.
- Rainfall levels are also high as rain cloud easily forms here.
- In most equatorial region, both temperature and rainfall is high all year round.
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