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A television station is reported to have a viewing and listening radius of 135 km. from its sending station. How many sq. km of territory does this station serve

Sagot :

If the question is asking square meters, then it refers to the area. And since it mentions radius, it is considered a circle, and so, in finding the area of a circle, we use the formula: [tex] \pi r^{2} [/tex] ,Where A is the area, [tex] \pi [/tex] is the constant 3.14 and is the radius. Therefore:

Area= 3.14 (135)²
        = 3.14 (18225)
        = 57226.5km²
Simple, we just have to find it's area.
A = πr²
A = 3.14(135 km)²
A = 3.14(18 225 km²)
A = 57 226.5 km²

Therefore, the answer to your question is 57 226.5 km²