3.73494 x 10^9
I hope this helps you out Heyimnessa.

Explanation:
Area is pi×r^2 and you times it by the fraction of the circle you have as its not a full circle.
Answer:
-5.2
Step-by-step explanation:
15.6 ÷ (-3) = -5.2
The Diameter of the circle =7m
Answer:
θ ≈ 40°
Step-by-step explanation:
Since, sinθ = 
cosθ = 
tanθ = 
In the picture attached,
Measures of adjacent side and opposite side of the triangle have been given. Therefore, tangent rule will be applied in the given triangle.
tanθ = 
θ = 
θ = 39.56
θ ≈ 40°