In order to find the are you have to multiply length x width.
In order to find the perimeter you have to add up all the sides together.
Answer:
The area of the sector BOC is A' = 31.4 
Step-by-step explanation:
Radius of the circle = 10 cm = 0.1 m
Angle of sector
= 36°
Area of the circle A =
A = 3.14 ×
= 0.0314
Now area of the sector BOC is


A' = 0.00314
= 31.4 
Therefore the area of the sector BOC is A' = 31.4 
Answer:
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Answer:
45° and 12
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
(8)
The polygon has n = 8, that is 8 exterior angles, thus
exterior angle = 360° ÷ 8 = 45°
(9)
The number of sides n is
n = 360 ÷ 30 = 12