tinnytinny941 tinnytinny941
  • 24-06-2020
  • Mathematics
contestada

What is the surface area of the right cone below?
A. 68 units2
B. 54 77 units
ОООО
C. 52 units
D. 1047 units

What is the surface area of the right cone below A 68 units2 B 54 77 units ОООО C 52 units D 1047 units class=

Respuesta :

danilobabaglio
danilobabaglio danilobabaglio
  • 24-06-2020

Answer:

A. 68 units2

Step-by-step explanation:

First of all to solve this problem we have to know the formula to calculate the surface area of the cone

A = area

r = radius  = 4

L = 13

π = pi  

A = π*r² + π*L*r

we replace with the known values

A = π *  (4u)² + π * 13u * 4u

A = 16π u² + 52π u²

A = 68π u²

The surface area of the cone is 68π u²

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