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Alex777 [14]
3 years ago
5

Help please I need this

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0

9514 1404 393

Answer:

  • Slant Height = 20.1 km
  • Radius = 9 km
  • Lateral Area = 568.3 km²

Step-by-step explanation:

The slant height is read from the diagram as 20.1 km.

The radius is half the diameter, so is 9.0 km.

The lateral area is ...

  A = πrs = π(9.0 km)(20.1 km) ≈ 568.3 km²

__

Desmos uses r for a special purpose, so we have used r₁ to signify the radius of the cone. The "round" function works only to round to an integer, so special effort must be used to get rounding to 1 decimal place.

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