christyscarboro christyscarboro
  • 23-04-2021
  • Mathematics
contestada

Identify the lateral area and surface area of a right cone with radius 7 cm and slant height 15 cm.

Respuesta :

egw785 egw785
  • 23-04-2021

Answer:

lateral area is  329.7 and the surface area is 483.56

Step-by-step explanation:

Lateral area = [tex]\pi (7)(15) = 105\pi = 329.7\\[/tex]

Surface area = lateral area + base area

Base area= [tex]\pi r^{2}[/tex] = [tex]\pi (7)^{2}[/tex] = [tex]49\pi[/tex]

Surface area = 105[tex]\pi + 49\pi = 154\pi = 483.56[/tex]

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