nevaehdmiller
nevaehdmiller nevaehdmiller
  • 22-07-2022
  • Mathematics
contestada

What is the surface area of the right cone below?


A. 63π units²

B. 54π units ²

C. 99π units²

D. 126π units²

What is the surface area of the right cone below A 63π unitsB 54π units C 99π unitsD 126π units class=

Respuesta :

sangitkdk sangitkdk
  • 22-07-2022

Answer:

B. 54π units ²

Step-by-step explanation:

solution:

given,

Radius (r) = 3

(l) = 15

we know that,

T.S.A. of cone = πr( r + l )

= π × 3(3 + 15)

= π × 3 × 18

= π × 54

= 54π units ²

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