1: what is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter a: 50 m^2 b: 101 m^2 c: 201 m^2 d: 268 m^2 2: what is the volume of a sphere with a radius of 6 meters rounded to the nearest square meter? a: 905 m^3 b: 679 m^3 c: 452 m^3 d: 226 m^3

Q1)
the surface area of the sphere can be calculated using the following equation 
Area = 4πr²
where r = radius
π = 3.142
radius of the sphere = 4 m
substituting radius in the area equation 
Area = 4 x 3.142 x 4²
        = 201.08 m²
when rounded off to nearest sq.meter , 201.08 ≈ 201
answer is C. 201 m²

Q2)
volume of the sphere can be calculated from the following equation
V = 4/3 πr³
 radius of sphere = 6 m
π = 3.142
V = 4/3 x 3.142 x 6³
   = 904.8 m³
rounded off to nearest sq. meter 
904.8 ≈ 905 m³
correct answer is A

Recall that area of the triangle is 1/2*(base)*(height)1/2*(13)*(17) = 110.5the answer is 110.5

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