Respuesta :

jesusm1

Answer:

Concept: Area

  1. [tex]area = \pi {r}^{2} [/tex]
  2. We are given area hence 78.5 square meters
  3. We want the radius so we isolate
  4. [tex]78.5 = \pi {r}^{2} [/tex]
  5. Isolate for r to get r= 4.99 or 5 square units approximately

Answer:

Step-by-step explanation:

use the area of a circle formula

A=pi r^2

78.5= pi r^2

78.5/ pi =r^2

24.9873..=r^2

[tex]\sqrt{24.9873}[/tex] = r

4.9987...=r  in meters , pretty close to 5

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